For on-line calibration system of flowmeter, the workingfluidflow is from the petroleum pipe line itself.
体积管工作时的液流,对于流量计在线检定系统,是来自输油管线本身。
2
Impeller-type flowmeter in the years of practical application, its working principle is relatively simple, general talk about is the principle of angular momentum of fluidflow measuring device.