英语词汇“trap seal”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	trap seal
释义	trap seal trap seal [′trap ‚sēl] (civil engineering) The vertical distance between the crown weir and the top of the dip of the trap in a plumbing system. trap seal In plumbing, the vertical distance between the crown weir and the top of the dip of the trap.
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