mixed flow sewage pump

例句：

1. 1. The mixed flow sewage pump is designed to efficiently treat wastewater.
   混流式污水泵被设计用来高效地处理废水。
2. 2. The installation of this type of pump is essential for maintaining the cleanliness of our city's waterways.
   安装这种泵对于保持我们城市水道的清洁至关重要。
3. 3. The engineers carefully selected the materials for the mixed flow sewage pump to ensure its durability and efficiency.
   工程师们仔细选择了用于混合流动污水泵的材料，以确保其耐用性和效率。