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单词 underdrain
释义 underdrain
I. \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\ noun
Etymology: under (III) + drain
: a concealed drain with openings through which the water enters when the water table reaches the level of the drain
 < an underdrain below a filter bed >
II. \| ̷ ̷ ̷ ̷| ̷ ̷\ transitive verb
: to drain by forming an underdrain
 < underdrain a meadow >
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更新时间:2025/3/21 13:38:31