介绍了孔板测量流量方法的工作原理。
The working principle of the orifice-plate measuring method of flow quantity was introduced.
在涡流表或其它类型的仪表不适合的普通用途的流量测量，或要求冗余测量的地方，孔板是第二选择。
Orifice plates are the second choice for general duty flow measurement where vortex meters or other types of meters are not suitable or where redundant measurement is required.
在工业上广泛使用孔板流量计测量气体体积流量。
It has been widely accepted by the industry for measuring gas volumes.
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