水泵

例句：

1. 1. The pump is essential for the operation of the irrigation system.
   泵对于灌溉系统的运行至关重要。
2. 2. The engineer designed a new type of water pump to improve efficiency.
   工程师设计了一种新型的水泵，以提高效率。
3. 3. The old pump was worn out and needed to be replaced.
   旧的水泵已经磨损，需要更换。