flow control valve

• 量第阀,流量调节阀,流量控制阀,流量调节开关

flow control valve的用法和样例：

例句

1. A drinking vessel, which is especially adapted for use by infants, toddlers and the like, includes a cup, a lid and a flow control valve.
   特别适于婴儿，幼儿和类似人使用的饮用容器，包括一杯，一盖和一流量控制阀。