underdrain

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. An underground drain or trench with openings through which the water may percolate from the soil or ground above.
动词 v.
  1. To drain by forming an underdrain or underdrains in. transitive

词形变化

underdrains plural underdrains present,singular,third-person underdraining participle,present underdrained participle,past underdrained past

词源

词源 1
From under- + drain.
词源 2
From under- + drain.
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