dispatcher's meter

例句：

1. 1. The dispatcher's meter is used to monitor the flow of gas through the pipeline.
   调度员的仪表用于监测气体通过管道的流量。
2. 2.The dispatcher's meter was used to measure the amount of oil being pumped from the well.
   调度员的仪表被用来测量从井中泵出的油量。
3. 3.The dispatcher's meter was used to ensure that the temperature in the room remained within a safe range.
   调度员的仪表被用来确保房间内的温度保持在安全范围内。