filter pump

例句：

1. 1. The filter pump is essential for maintaining the cleanliness of the water supply.
   过滤泵对于保持供水的清洁至关重要。
2. 2.The engineer designed a new filter pump that can handle larger volumes of wastewater.
   工程师设计了一种新型的过滤泵，能够处理更大的废水量。
3. 3. The filter pump was used to remove impurities from the raw water before it was treated.
   过滤泵被用来从原始水中去除杂质，然后进行净化处理。