蒸气计

例句：

1. 1. The steam gauge is used to measure the flow of steam.
   蒸汽表用于测量蒸汽的流量。
2. 2. The engineer carefully checked the steam gauge before starting the machine.
   工程师在启动机器前仔细检查了蒸汽表。
3. 3. The steam gauge was an essential tool for monitoring the efficiency of the boiler.
   蒸汽表是监测锅炉效率的必备工具。