<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0">
<channel>
<title><![CDATA[EC21 Product Catalogs - calculation]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/calculation--2717/1/calculation.html]]></link><item>
<title><![CDATA[Portable Digital Beverage CO2 Calculator]]></title><link><![CDATA[https://sookiecanneed.en.ec21.com/Portable_Digital_Beverage_CO2_Calculator--12024209_12027348.html]]></link><description><![CDATA[CanNeed-DGM-200 Portable Digital Beverage CO2 Meter is common in breweries and soft drink industry to frequently measure the CO2 content during production. It enables a fast and accurate determinatio]]></description><pubDate><![CDATA[20241126]]></pubDate></item>
<item>
<title><![CDATA[Fluke TI480 PRO Thermal Imaging Camera]]></title><link><![CDATA[https://toolshed.en.ec21.com/Fluke_TI480_PRO_Thermal_Imaging--12045274_12045346.html]]></link><description><![CDATA[calculates distance to the target for precisely focused images and displays distance on screenAdvanced manual focus: YesRuggedised touchscreen display: 3.5 inch (landscape), 640 x 480 LCDRugged, ergo]]></description><pubDate><![CDATA[20250226]]></pubDate></item>
<item>
<title><![CDATA[Fluke TI480 PRO 60 Hz, 640 X 480 High-Performance IR Thermal Camera]]></title><link><![CDATA[https://aceinstuments.en.ec21.com/Fluke_TI480_PRO_60_Hz--11561118_11932301.html]]></link><description><![CDATA[calculates and displays distance from designated target
Advanced manual focus
Wireless connectivity to PC, iPhone, iPad (iOS 4s and later), Android (4.3 and up), and WiFi to LAN (where available)
Flu]]></description><pubDate><![CDATA[20250129]]></pubDate></item>
<item>
<title><![CDATA[Fluke TIX580 Infrared Camera]]></title><link><![CDATA[https://landsurvey.en.ec21.com/Fluke_TIX580_Infrared_Camera--11790575_11793442.html]]></link><description><![CDATA[calculates and displays the distance to your designated target with pinpoint accuracy Use Fluke Connect® to wirelessly export and share images with your team. Make faster decisions by accessing insp]]></description><pubDate><![CDATA[20250109]]></pubDate></item>
<item>
<title><![CDATA[New Fluke TI480 PRO 60HZ Thermal Imager]]></title><link><![CDATA[https://focuscalibration.en.ec21.com/New_Fluke_TI480_PRO_60HZ--11927627_11927630.html]]></link><description><![CDATA[calculates distance to the target for precisely focused images and displays distance on screenAdvanced manual focusYesWireless connectivityYes, to PC, iPhone® and iPad® (iOS 4s and later), Android]]></description><pubDate><![CDATA[20250104]]></pubDate></item>
<item>
<title><![CDATA[YH800C Portable Fully Automatic Pressure Calibrator]]></title><link><![CDATA[https://yuanhuatc66.en.ec21.com/YH800C_Portable_Fully_Automatic_Pressure--12022422_12033066.html]]></link><description><![CDATA[calculation, and automatic identification of errors;
◆ Form verification record formats and certificates that comply with national verification regulations or user requirements;
◆ The pressure co]]></description><pubDate><![CDATA[20241225]]></pubDate></item>
<item>
<title><![CDATA[Laser Distance Measurer]]></title><link><![CDATA[https://holo1.en.ec21.com/Laser_Distance_Measurer--11942959_11942962.html]]></link><description><![CDATA[distance.
Operating Principles:
Distance is calculated using the speed of light and the time it takes
for the laser pulse to return. The device converts this into a readable
distance measurement.
]]></description><pubDate><![CDATA[20241206]]></pubDate></item>
<item>
<title><![CDATA[Digital Rail Head Wear Gauge]]></title><link><![CDATA[https://420621199211083365.en.ec21.com/Digital_Rail_Head_Wear_Gauge--12024098_12024101.html]]></link><description><![CDATA[calculations required,gives direct reading ; When reading, hold down the HOLD button to fix the measurement value and facilitate reading.
2. High measuring accuracy
The measurement accuracy is 0.01m
]]></description><pubDate><![CDATA[20241113]]></pubDate></item>
<item>
<title><![CDATA[Performance Test System of Floor Spring]]></title><link><![CDATA[https://mimayijingaile0.en.ec21.com/Performance_Test_System_of_Floor--11987076_11989144.html]]></link><description><![CDATA[Calculate the data and generate the performance test report of
closing force value according to EN 1154:1997+A1:2006,ANSI/BHMA A156.4:2019
(As shown in Figure 1) and test method and report for QBT269]]></description><pubDate><![CDATA[20241019]]></pubDate></item>
<item>
<title><![CDATA[UTOCO Laser Natural Gas Detector for Refineries and Gas Processing Plants]]></title><link><![CDATA[https://utoco.en.ec21.com/UTOCO_Laser_Natural_Gas_Detector--12010082_12010090.html]]></link><description><![CDATA[calculating this ratio. It is often used in natural gas stations, urban gas inspections and other occasions.
Features:
High sensitivity and anti-interference;
Small size, light weight and long distan]]></description><pubDate><![CDATA[20240926]]></pubDate></item>
<item>
<title><![CDATA[EMCEE Model 1154 Precision Conductivity Meter]]></title><link><![CDATA[https://xmjielian.en.ec21.com/EMCEE_Model_1154_Precision_Conductivity--11982130_11982350.html]]></link><description><![CDATA[calculable. Thus, the resultant peak current is readily transformed and digitally displayed as picosiemens per meter (pS/m), also commonly known as conductivity units (CU). As defined in ASTM Standar]]></description><pubDate><![CDATA[20240813]]></pubDate></item>
<item>
<title><![CDATA[NDJ-1C Hot Melt Adhesives Brookfield Viscosity Meter]]></title><link><![CDATA[https://zotaimachine.en.ec21.com/NDJ_1C_Hot_Melt_Adhesives--11144324_11144465.html]]></link><description><![CDATA[calculation.
2. Adopting microcomputer drive technology and imported stepping motor, the speed is stable and reliable.
3.
With switching power supply technology, the voltage and frequency range
is wi]]></description><pubDate><![CDATA[20240705]]></pubDate></item>
<item>
<title><![CDATA[F105/F305/F505/F505H Advanced Test Stand Frame]]></title><link><![CDATA[https://lanetech11.en.ec21.com/F105_F305_F505_F505H_Advanced--11944805_11944810.html]]></link><description><![CDATA[Calculations Module is available. This module provides a range of standard calculations, including tensile strength, Young’s modulus, yield point, among others, to thoroughly characterize and analy]]></description><pubDate><![CDATA[20240530]]></pubDate></item>
<item>
<title><![CDATA[Professional FI Manufacturer for Power Distribution Network Intellegent Wireless Office System]]></title><link><![CDATA[https://snova17.en.ec21.com/Professional_FI_Manufacturer_for_Power--10349843_10349891.html]]></link><description><![CDATA[calculating, Analysis ,judge the short circuit or ground fault. When Sensor detect the fault happen, then the Fault indicator warn the manager
through turn red flag, and shine 3 color ultra-led. It i]]></description><pubDate><![CDATA[20240520]]></pubDate></item>
<item>
<title><![CDATA[Radiation Detectors]]></title><link><![CDATA[https://radsafetech.en.ec21.com/Radiation_Detectors--11848452_11938482.html]]></link><description><![CDATA[calculate this factor, cosmic radiation must be taken into account. For example, taking cosmic radiation into account, the maximum radioactivity content at the Schneefernerhaus, Germany&apos;s highest env]]></description><pubDate><![CDATA[20240517]]></pubDate></item>
<item>
<title><![CDATA[Digital Test Hammer Manufacturer]]></title><link><![CDATA[https://198358.en.ec21.com/Digital_Test_Hammer_Manufacturer--4030105_7244334.html]]></link><description><![CDATA[in finished structure or prefabricated blocks.
Automatic correction of impact direction
Automatic calculating compressive strength
All testing data can be stored in memory and transferred to PC]]></description><pubDate><![CDATA[20240430]]></pubDate></item>
<item>
<title><![CDATA[Sonic Nozzle Gas Meter Test Bench]]></title><link><![CDATA[https://tnmacalibration.en.ec21.com/Sonic_Nozzle_Gas_Meter_Test--11926262_11926265.html]]></link><description><![CDATA[calculations to ensure device accuracy. The entire system achieves fully automated testing under PC control and incorporates comprehensive functions such as raw data storage, querying, and printing.
]]></description><pubDate><![CDATA[20240417]]></pubDate></item>
<item>
<title><![CDATA[Fluke 754 Documenting Process Calibrator and Hart Instrumentation]]></title><link><![CDATA[https://endangsurvey.en.ec21.com/Fluke_754_Documenting_Process_Calibrator--11329183_11550830.html]]></link><description><![CDATA[calculator 
With four functions-plus square root-stores, recalls, and performs calculations required for setting up instruments or evaluating data in the field. Use it to set the source function to a]]></description><pubDate><![CDATA[20240408]]></pubDate></item>
<item>
<title><![CDATA[Coefficient of Friction Tester ASTM D1894 Plastic Friction Coefficient Tester Paper Friction Testing]]></title><link><![CDATA[https://celtec.en.ec21.com/Coefficient_of_Friction_Tester_ASTM--9267526_9296178.html]]></link><description><![CDATA[calculation, analysis and curve superposition
RS232 output and professional software
Microprint of easy printing of test result
Coefficient of Friction Tester technical Specification
Load Cell 5N
Acc]]></description><pubDate><![CDATA[20240325]]></pubDate></item>
<item>
<title><![CDATA[Octane Cetane Reference Fuel Blending System for Cfr Engines]]></title><link><![CDATA[https://sinpar.en.ec21.com/Octane_Cetane_Reference_Fuel_Blending--11037244_11911864.html]]></link><description><![CDATA[calculation program controls the whole blending process to eliminate human error and improve the efficiency of octane/cetane testing.
◼ Safety and Real-Time Monitoring
The unit is equipped with ele]]></description><pubDate><![CDATA[20240319]]></pubDate></item>
<item>
<title><![CDATA[300J Metal Material Automatic Charpy Pendulum VU-notch Used Izod Laboratory  Impact Tester]]></title><link><![CDATA[https://astmtester123.en.ec21.com/300J_Metal_Material_Automatic_Charpy--9999931_10000030.html]]></link><description><![CDATA[calculate the absorbed energy, impact toughness, the scattering angle and test average number.
7. It can print the testing data and testing averages every time. According to users’ requirements,we ]]></description><pubDate><![CDATA[20190815]]></pubDate></item>
<item>
<title><![CDATA[300J Metal Material Automatic Charpy Pendulum VU-notch Used Izod Laboratory Usage Impact Tester]]></title><link><![CDATA[https://lgtester789.en.ec21.com/300J_Metal_Material_Automatic_Charpy--10000304_10000373.html]]></link><description><![CDATA[calculate the absorbed energy, impact toughness, the scattering angle and test average number.
7. It can print the testing data and testing averages every time. According to users’ requirements,we ]]></description><pubDate><![CDATA[20190821]]></pubDate></item>
<item>
<title><![CDATA[Torque Meter Tester Testing Measuring Machine 0.15~500kg]]></title><link><![CDATA[https://1987merch.en.ec21.com/Torque_Meter_Tester_Testing_Measuring--11291689_11672548.html]]></link><description><![CDATA[calculate and display the torque value Max and torque value AVG.
6) Allow using the built-in terminal to contact it with computer to output the torque value data,You also can edit and calculate it.
7]]></description><pubDate><![CDATA[20221112]]></pubDate></item>
<item>
<title><![CDATA[Olympus EPOCH 6LT Ultrasonic Flaw Detector]]></title><link><![CDATA[https://karyaabadi.en.ec21.com/Olympus_EPOCH_6LT_Ultrasonic_Flaw--11834264_11834279.html]]></link><description><![CDATA[calculations.
Added Versatility: Optional Software Features Epoch 6LTCorrosion Module: For corrosion inspections, this feature enables automatic ultrasonic setups based on transducer selection with a]]></description><pubDate><![CDATA[20230815]]></pubDate></item>
<item>
<title><![CDATA[Digital Surface Roughness Tester]]></title><link><![CDATA[https://ame7788.en.ec21.com/Digital_Surface_Roughness_Tester--9652079_10558194.html]]></link><description><![CDATA[Product Description 
The Surface Roughness Tester is widely used in production site to measure surface roughness of various machinery-processed parts, calculate correspondingparameters according to s]]></description><pubDate><![CDATA[20230830]]></pubDate></item>
<item>
<title><![CDATA[NAMS (Portable)]]></title><link><![CDATA[https://xinertel.en.ec21.com/NAMS_Portable--10761704_10761762.html]]></link><description><![CDATA[calculate network and application performance indicators, generate alarms based on settings, baseline and DDOS pattern. The analysis data is kept in the database for long time and provide network vis]]></description><pubDate><![CDATA[20190419]]></pubDate></item>
<item>
<title><![CDATA[Automatic Microcomputer Control Transformer Multi-functional Comprehensive Performance Test Bench]]></title><link><![CDATA[https://nanaoelec.en.ec21.com/Automatic_Microcomputer_Control_Transformer_Multi--10586983_10716645.html]]></link><description><![CDATA[calculation of each parameter. 
Equipment usage 
The device is suitable for comprehensive testing of the electrical performance of transformers of various specifications. 
It is applicable to the fac]]></description><pubDate><![CDATA[20180827]]></pubDate></item>
<item>
<title><![CDATA[Oxygen Permeability Testing Instrument (OTR Tester)]]></title><link><![CDATA[https://gbpitester.en.ec21.com/Oxygen_Permeability_Testing_Instrument_OTR--11629254_11631103.html]]></link><description><![CDATA[calculate the water vapor transmission rate.
Working principle diagram:
Techinical parameter: 
Test range
0.02 ~ 16500 cm3/m2*24h (transmission max: 260000 cm3/m2*24h)
Test accuracy
0.001 cm3/m2*24h
]]></description><pubDate><![CDATA[20220901]]></pubDate></item>
<item>
<title><![CDATA[Low Temperature Dynamic Viscosity Tester]]></title><link><![CDATA[https://precisionbe.en.ec21.com/Low_Temperature_Dynamic_Viscosity_Tester--11718430_11856912.html]]></link><description><![CDATA[Instrument Introduction 
The instrument mainly tests the low temperature dynamic viscosity index of engine oil, and the instrument is fully controlled by computer. Automatic calculation of viscosity ]]></description><pubDate><![CDATA[20231020]]></pubDate></item>
<item>
<title><![CDATA[Auto Servo Tensile Tester Universal Testing Equipment Lab Testing Machine]]></title><link><![CDATA[https://systester18.en.ec21.com/Auto_Servo_Tensile_Tester_Universal--10834076_10927099.html]]></link><description><![CDATA[calculation.
17: DSM system is optional(Laboratory Management Information System), easy to manage test data.
Technical Indexes
1: Load range: 50N, 100N, 250N, 500N, 1000N, 2.5kN.(Personal customizati]]></description><pubDate><![CDATA[20210625]]></pubDate></item>
<item>
<title><![CDATA[Universal Testing Machine Testing Equipment]]></title><link><![CDATA[https://idminstruments.en.ec21.com/Universal_Testing_Machine_Testing_Equipment--10741635_10741646.html]]></link><description><![CDATA[calculated by determining the force required to deflect a test piece a percentage of its original thickness using a circular indentor, which applies a force, while also recording the degree of indent]]></description><pubDate><![CDATA[20180601]]></pubDate></item>
<item>
<title><![CDATA[Vehicle Test Bench Durability Test Car Speed/MileageTest Car Inspection Mot Testing Station Test OBD]]></title><link><![CDATA[https://leoscan.en.ec21.com/Vehicle_Test_Bench_Durability_Test--11841594_11841624.html]]></link><description><![CDATA[calculates. The linear velocity of the surface, and the data value is displayed. Test data can be saved, edited and generate report to print out.
The test bench is mainly composed of a host table, a ]]></description><pubDate><![CDATA[20230911]]></pubDate></item>
<item>
<title><![CDATA[GF1061 Portable CT PT Analyzer Is Mainly Used for Field or Lab Testing, It Can Finish the Measuremen]]></title><link><![CDATA[https://gfuve0123.en.ec21.com/GF1061_Portable_CT_PT_Analyzer--10658146_10658147.html]]></link><description><![CDATA[Calculation of knee point value
7. Ratio error, phase error
7. Actual secondary load test (burden test)
8. Automatic calculation of excitation knee 
point value
8. Resistance test
9. Actual secondary]]></description><pubDate><![CDATA[20180509]]></pubDate></item>
<item>
<title><![CDATA[Falling Weight Deflectometer FWD]]></title><link><![CDATA[https://tianpeng01.en.ec21.com/Falling_Weight_Deflectometer_FWD--10975972_11481274.html]]></link><description><![CDATA[calculate the following surface conditions:
♦ Bearing Capacity♦ Layer Thickness♦ E Moduli♦ Expected Surface Life
Features:
♦ International Design to ASTM D 4694♦ Automatic controlled load]]></description><pubDate><![CDATA[20230530]]></pubDate></item>
<item>
<title><![CDATA[Phantomlab ECTphan 330]]></title><link><![CDATA[https://coastaltrading2023.en.ec21.com/Phantomlab_ECTphan_330--11836757_11836798.html]]></link><description><![CDATA[calculated from the pixel values in the area.
End Plate: The end plate has threaded holes to mount the point source holder and the ‘hot’ and ‘cold’ low contrast inserts. When tests are not ne]]></description><pubDate><![CDATA[20230822]]></pubDate></item>
<item>
<title><![CDATA[Computer Servo System Double-Column Tensile Testing Machine]]></title><link><![CDATA[https://lituotest.en.ec21.com/Computer_Servo_System_Double_Column--11372348_11372351.html]]></link><description><![CDATA[calculates the results and displays the curve diagram11. Force precision: within ±0.3%12. Motor: panasonic servo motor, Japan13. Software system: universal high-precision economic system independent]]></description><pubDate><![CDATA[20210423]]></pubDate></item>
<item>
<title><![CDATA[Brilliant Green Indicator]]></title><link><![CDATA[https://weiyel.en.ec21.com/Brilliant_Green_Indicator--11909235_11909461.html]]></link><description><![CDATA[Calculated as, it gradually fades. Adding sodium hydroxide almost all fades and precipitates dark purple precipitate. Melting point 288 ℃ (decomposition), maximum absorption wavelength 630(422)nm. ]]></description><pubDate><![CDATA[20240307]]></pubDate></item>
<item>
<title><![CDATA[Coefficient of Friction Tester]]></title><link><![CDATA[https://celtec2.en.ec21.com/Coefficient_of_Friction_Tester--11854816_11854821.html]]></link><description><![CDATA[calculated 
by dividing the force needed to move one 
surface across another by the force 
perpendicular to the surfaces. The formula 
is μ = f ÷ N, where μ represents the 
coefficient of friction]]></description><pubDate><![CDATA[20231016]]></pubDate></item>
<item>
<title><![CDATA[DC Brushless Fan Motor Dynamometer]]></title><link><![CDATA[https://hzchangniu.en.ec21.com/DC_Brushless_Fan_Motor_Dynamometer--11882582_11882988.html]]></link><description><![CDATA[calculate the three-phase resistance
balance; The ambient temperature can be detected in real time, and the test
results are automatically converted into standard temperature values, which
makes the ]]></description><pubDate><![CDATA[20240222]]></pubDate></item>
<item>
<title><![CDATA[TTR-I Fully Automatic Three Phase Power Transformer Turns Ratio Test Set]]></title><link><![CDATA[https://cndeltatech.en.ec21.com/TTR_I_Fully_Automatic_Three--11542988_11543002.html]]></link><description><![CDATA[calculated with the ratio.All parameters can be measured in one test for three
phase transformer.
Functions:
Parameters
Testing / Type of Transformer
Single Phase
Power Transformer
3 Phase Power
Tran]]></description><pubDate><![CDATA[20220314]]></pubDate></item>
<item>
<title><![CDATA[Automatic Image Measuring Device]]></title><link><![CDATA[https://qiantongyiqi.en.ec21.com/Automatic_Image_Measuring_Device--11683816_11853605.html]]></link><description><![CDATA[calculation ability. The default tolerance zone can be set to meet the shape and position tolerance calculation ability of the national standard, and can calculate the shape tolerance, true straightn]]></description><pubDate><![CDATA[20231012]]></pubDate></item>
<item>
<title><![CDATA[Temperature Humidity Standard Environment Experiment Calibration Chamber Cabinet]]></title><link><![CDATA[https://tadt2023.en.ec21.com/Temperature_Humidity_Standard_Environment_Experiment--11689458_11689464.html]]></link><description><![CDATA[calculation and display of temperature and humidity fluctuation, stable state prompt, U disk insertion detection, wifi connection prompt
* Curve display: temperature and humidity curve real-time disp]]></description><pubDate><![CDATA[20221209]]></pubDate></item>
<item>
<title><![CDATA[Ground Resistance Tester]]></title><link><![CDATA[https://hengfengtest.en.ec21.com/Ground_Resistance_Tester--11895397_11895404.html]]></link><description><![CDATA[calculate more accurate test results.
7. Built-in 1500 Ω imitate human body resistance, when testing step voltage ,users can get the real step voltage data and curve.(optional)
8. All English menu, ]]></description><pubDate><![CDATA[20240130]]></pubDate></item>
<item>
<title><![CDATA[Intelligent Temperature Measuring Machine]]></title><link><![CDATA[https://auroraguoxia12.en.ec21.com/Intelligent_Temperature_Measuring_Machine--11599950_11770469.html]]></link><description><![CDATA[calculated as 100KB) and 1 million recognition records (including the last 40,000 photos captured on site, and the photos are calculated as 100KB);
Applications of Intelligent Temperature Measuring M]]></description><pubDate><![CDATA[20230417]]></pubDate></item>
<item>
<title><![CDATA[LT-03 Leak Tester]]></title><link><![CDATA[https://materialstests.en.ec21.com/LT_03_Leak_Tester--11896647_11896650.html]]></link><description><![CDATA[calculated in operation process.
At customer’s request, we can change language to local type.
For GMP purpose, we can add access level management.
We provide a variety of chamber shapes and sizes.
]]></description><pubDate><![CDATA[20240202]]></pubDate></item>
<item>
<title><![CDATA[EHS Shore Durometer Hardness Tester Unit]]></title><link><![CDATA[https://mikrometry.en.ec21.com/EHS_Shore_Durometer_Hardness_Tester--11911431_11911440.html]]></link><description><![CDATA[calculate the hardness value with the average indentation depth.
MAX: To calculate the hardness value with the maximum indentation depth.
Timing: To calculate the hardness value with the maximum inde]]></description><pubDate><![CDATA[20240313]]></pubDate></item>
<item>
<title><![CDATA[WDW Microcomputer Control Electronic Universal Tester]]></title><link><![CDATA[https://shiyanji.en.ec21.com/WDW_Microcomputer_Control_Electronic_Universal--4048548_4096496.html]]></link><description><![CDATA[calculated after test through computer and display test curves and results. If it is connected with printer, it can print test reports.
1. It has remote control box through which can adjust crossbeam]]></description><pubDate><![CDATA[20120515]]></pubDate></item>
<item>
<title><![CDATA[ACP Electrical Current Transformer Test, CT/PT Analyzer]]></title><link><![CDATA[https://aijiezn.en.ec21.com/ACP_Electrical_Current_Transformer_Test--3533367_11343743.html]]></link><description><![CDATA[Calculation of Knee
Point Value 
3. Auto 5% and 10% error
curves, can measure ALF 
4. Transformer Ratio
Test 
5. Polarity 
6. Ratio difference
measurement 
7. Phase (angle difference)
measurement 
8.]]></description><pubDate><![CDATA[20210224]]></pubDate></item>
<item>
<title><![CDATA[KRD15 Pneumatic Horizontal Shock Response Spectrum Test System]]></title><link><![CDATA[https://cmetechnology.en.ec21.com/KRD15_Pneumatic_Horizontal_Shock_Response--11706077_11837075.html]]></link><description><![CDATA[calculate the shock response spectrum, and finally synthesize it to get the shock response spectrum of the entire system, as shown in Figure 1 below. 
CME Technology Co., Ltd. was established in 2006]]></description><pubDate><![CDATA[20230823]]></pubDate></item>
<item>
<title><![CDATA[ST-7602L Halogen Release Measuring Device]]></title><link><![CDATA[https://satatech.en.ec21.com/ST_7602L_Halogen_Release_Measuring--3839683_5328482.html]]></link><description><![CDATA[for each, 500mL gas washing and absorbing device and 
According to inner diameter of quartz tube gas flowmeter calculate the setting flux;
ρ=V•πD2/4=20*3.14*342 /4ml/h=302ml/min±10%ï¼Â
]]></description><pubDate><![CDATA[20201002]]></pubDate></item>

</channel>
</rss>