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字词 滑轮
释义 滑轮huálún简单机械,是一个装在架子上的周缘有槽的轮子,能穿上绳子或链条,多用来提起重物。{pulley; simple mechanism consisting of a wheel with a grooved rim for a cord or chain to pass over, which turns in a frame or block and serves to lift sth. heavy;}通称{generally called}滑车{huáchē}
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