hydraulic sludge withdrawal pipe

例句：

1. 1. The engineer designed a hydraulic sludge removal system to improve the efficiency of wastewater treatment.
   工程师设计了一个液压污泥去除系统，以提高废水处理的效率。
2. 2. The hydraulic sludge extraction system is essential for maintaining the cleanliness of the industrial process.
   液压污泥提取系统对于保持工业过程的清洁至关重要。
3. 3. The hydraulic sludge withdrawal pipe was used to remove the excess sludge from the factory's wastewater treatment plant.
   液压污泥抽吸管被用来从工厂的废水处理厂中抽出多余的污泥。