drainage是什么意思

实用例句

1. This is a drainage area.

这里是排水区.来自《简明英汉词典》

2. The defect in the drainage must be remedied.

这排水系统的缺陷该设法补救.来自《简明英汉词典》

3. Bad drainage caused the land to be flooded.

排水不利容易使土地淹水.来自《简明英汉词典》

4. It is advisable to mix coarse grit into heavy soil to improve drainage.

建议将粗砂掺到黏重的土壤里，以提高排水性能。来自柯林斯例句

5. It is wise to start infilling with a layer of gravel for drainage.

先铺上一层利于排水的砾石是个明智的做法。来自柯林斯例句