英语词汇“roller 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	roller gate
释义	roller gate noun : a hollow drum placed horizontally at the crest of a dam and rolled up or down an inclined track by pinion and rack to regulate water elevation
随便看	stage-door johnny stage driver staged tower stage effect stage fright stagehand stagehouse stage-keeper stageland stageman stage-manage stage management stage manager stage micrometer stage name stageplank stager stager stage right stagery stages stage screw stage set stage setting stage space

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