counter flow screen

例句：

1. 1. The counter flow screen is used to remove impurities from the water before it reaches the treatmentplant.
   逆流筛用于在水到达处理厂之前去除杂质。
2. 2. The design of the counter flow screen is crucial for efficient wastewater treatment.
   逆流筛的设计对于高效的废水处理至关重要。
3. 3. The counter flow screen is a critical component in the filtration process, helping to maintain high levels of cleanliness in the water.
   逆流筛是过滤过程的关键组件，有助于保持水质的清洁度。