hand bilge pump

例句：

1. 1.The hand pump is used to remove water from the tank.
   手泵用于从水箱中抽水。
2. 2.The hand pump is a simple tool that can be used to clear small amounts of water.
   手泵是一种简单的工具，可以用来清除少量的水。
3. 3.The hand pump was used to drain the tank after the flood.
   在洪水后，手泵被用来排空水箱。