stopcocks
英 [ˈstɒpkɒks]
美
n. (调节管道流量的)旋塞，活栓
stopcock的复数
柯林斯词典
- 活塞;活栓;旋塞阀
A stopcock is a tap on a pipe, which you turn in order to allow something to pass through the pipe or to stop it from passing through.
美
n. (调节管道流量的)旋塞，活栓
stopcock的复数