shut-off valve

• 关闭阀

shut-off valve的用法和样例：

例句

1. Install a shutoff valve in the cold water inlet line.
   在冷水进水管处安装一个关闭阀。
2. The Pacific tilting disc check valve uses gravity to rapidly close the disc upon reversal of flow.
   美国太平洋翻转式阀瓣止回阀在出现逆流时利用重力迅速关闭阀瓣。