differential pressure flowmeter

例句：

1. 1. The differential pressure flowmeteris used to measure the flow rate ofgases.
   差压流量计用于测量气体的流量。
2. 2. The differential pressure flowmeter was installedin the pipeline to monitor the pressure changes.
   差压流量计安装在管道中以监测压力变化。
3. 3. The differential pressure flowmeter isa crucial tool for oil and gas industry.
   差压流量计是石油和天然气行业的关键工具。