无用功是什么意思-无用功的词语解释-相关组词-词语-近音词-同音词 - 掌上跨屏通词语词典

题目

更新时间：2025-02-03 14:02:43

求解答，词语无用功是什么意思？再说说无用功有什么含义？

答案

无用功的词语解释

无用功[ wú yòng gōng ]

机械克服额外阻力（如起重机提起重物时起重机臂的重力以及绳索和滑轮间的摩擦力）所做的功。

无用功的词语组词

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无用功的相关词语

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