英语词汇“controlled-flow roof drainage system”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	controlled-flow roof drainage system
释义	controlled-flow roof drainage system controlled-flow roof drainage system A roof drainage system that permits rainwater to drain off a roof much more slowly than the rate at which it accumulates; after the storm has abated, the accumulation drains off at a controlled rate.
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