steam throttle valve

例句：

1. 1.The steam throttle valve is used to control the flow of steam.
   蒸汽节流阀用于控制蒸汽的流动。
2. 2. The engineer adjusted the steam throttle valve to increase efficiency.
   工程师调整了蒸汽节流阀以提高效率。
3. 3.During maintenance, the technician replaced the faulty steam throttle valve.
   在维护期间，技术人员更换了故障的蒸汽节流阀。