英语词汇“railroad jack”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	railroad jack
释义	railroad jack railroad jack [′rāl‚rōd ‚jak] (mechanical engineering) A hoist used for lifting locomotives. A portable jack for lifting heavy objects. A hydraulic jack, either powered or lever-operated.
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