The waters wear the stones: thou washest away the things which grow out of the dust of the earth; and thou destroyest the hope of man.
3
本实用新型结构简单,它既能有效地防止废水泛溢,又能使排水畅通无阻。
The utility model has the advantage of simple structure. The utility model can effectively prevent sewage water overflow and ensure draining to be unblocked.