英语词汇“speed-changing gearing, reversing gear”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	speed-changing gearing, reversing gear
释义	speed-changing gearing, reversing gear 机械工程照明；加热；武器；爆破变速齿轮；变向齿轮
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