英 [ˈstɒpkɒk] 美 [ˈstɑːpkɑːk]
n. 活塞；开关；止水栓；水龙头
复数stopcocks
stopcock /ˈstɒpˌkɒk/
可数名词 A stopcock is a faucet on a pipe, which you turn in order to allow something to pass through the pipe or to stop it from passing through. 管闩; 旋塞阀
气流开关
旋塞阀
... spring 弹簧 stopcock 气流开关 wick 加湿器的芯子 ...
旋塞阀（Stopcock）是关闭件或柱塞形的旋转阀，通过旋转90度使阀塞上的通道口与阀体上的通道口相同或分开，实现开启或关闭的一种阀门。
... stopvalve止动阀 stopcock活栓；活塞；旋塞阀 StorarecoveryStora碱回收法 ...
... stopvalve止动阀 stopcock活栓；活塞；旋塞阀 StorarecoveryStora碱回收法 ...
Besides, a few of energy saving stopcock, lamps will also appear at this expo.
一些节能水龙头、节能灯、仿原生态地板、陶瓷、绿色厨房等产品都将集中亮相。
So we need to save energy in our daily life, such as close stopcock, lights, air-conditioning and fans when we leave.
所以我们需要在我们的日常生活中节约能源，如在我们离开的时候关闭水龙头，灯，空调和电扇。