foot valve

• 脚踩阀

foot valve的用法和样例：

例句

1. He put his great foot on the flowerbed.
   他的大脚踩在花坛上。
2. She often has a foot in both camps.
   她经常脚踩两只船。
3. Foot valves are normally installed in an open tank or sump on the suction side of a pump.
   通常底阀是安装在一个开口罐里，或泵的吸入一侧的液体坑里。