“Leonardo da Vinci friction experiments”的概念、定义、翻译、参考文献-科学参考

单词	Leonardo da Vinci friction experiments
释义	Leonardo da Vinci friction experiments Encyclopedia 工学摩擦释 Leonardo da Vinci friction experiments达·芬奇摩擦实验达·芬奇发明了几种不同装置，用来测试木材间的滑动摩擦和滚动摩擦特性，发现当木块M的重量加倍时用绳索拖动木块M向左滑动所需要的重物F的重量也加倍，重物F的重量是木块重量的四分之一，是一个常数，而且与木块横竖放置（即改变与台面的接触面积）无关的实验。
随便看	knowledge value chain knowledge web knowledge work automation known known function known number known plaintext attack known-plaintext attack known public known quantity known spirit know the tone know-what knowledge know-who knowledge know-why knowledge knoxia root Knoxville kntter knuckle Knudsen cell Knudsen diffusion Knudsen effect Knudsen number Knuth Knut Hamsun

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