英语词汇“flap gate”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	flap gate
释义	flap gate noun : a gate hinged at the top and opening one way only and placed in a channel to close automatically on reversal of flow compare flap valve
随便看	doubling (back) doubling (in) doubling as doubling back doubling cube doubling down doubling in doubling up doubling up on doublings doubloon doubloons doublure doublures doubly doubly ruled surface doubt doubtable doubted doubtedly doubter doubters doubtful doubtfuller doubtfullest

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flap gate