“达·芬奇摩擦实验”的概念、定义、翻译、参考文献-科学参考

单词	达·芬奇摩擦实验
释义	达·芬奇摩擦实验 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	Institution of media operation and management Institution of Nian Ban Institution of producer institution of soil and water conservation monitoring institution of the permit to fishing institution requirements institutions institutions drift institutions for old-age care institutions for social welfare service Institutions, Institutional Change and Economic Performance institutions related to fisheries education in China institution supervision institution supply Instituto Cultural Peruano-Chino Instituto de Astrofísica de Canarias Instituto Indigenista Interamericana Institut Pasteur of Shanghai, Chinese Academy of Sciences instoscope instream water balancing instroke Instruction instruction instruction address register instructional all-in-one PC

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