drainage是什么意思

drainage

英[ˈdreɪnɪdʒ] 美[ˈdrenɪdʒ]

n.排水，放水；排水系统；排走物，废水；排水区域

n.1.废水,污水释义下的同义词

2.排水系统,下水道释义下的同义词 guttering

双语例句

1 . This is a drainage area.: 这里是排水区.

2 . The defect in the drainage must be remedied.: 这排水系统的缺陷该设法补救.

3 . Bad drainage caused the land to be flooded.: 排水不利容易使土地淹水.

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。