英语词汇“standard absorption trench”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	standard absorption trench
释义	standard absorption trench standard absorption trench An absorption trench which is 12 to 36 in. (approx. 30 to 90 cm) in width, containing 12 in. (30 cm) of clean coarse aggregate and a distribution pipe which is covered with a minimum of 12 in. (30 cm) of earth cover.
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