英语词汇“定滑輪”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	定滑輪
释义	定滑輪 dìng huá lún位置固定的滑轮。使用时，整个滑轮位置不变而轮子转动，这种滑轮只能改变力的方向却不能省力。
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