dry-pit pump

例句：

1. 1. The dry-pit pump is used to pump water from the dry well.
   干井泵用于从干井中抽水。
2. 2. The dry-pit pump is a crucial tool for maintaining water levels in the dry well.
   干井泵是维护干井水位的关键工具。
3. 3. The dry-pit pump was installed to improve the efficiency of water extraction from the dry well.
   安装干井泵是为了提高从干井中提取水的工作效率。