“simple machinery”的概念、定义、翻译、参考文献-科学参考

单词	simple machinery
释义	simple machinery Encyclopedia 理学静力学释 simple machinery简单机械人类在劳动实践中最早创造的结构简单的机械，包括杠杆、滑轮、斜面、螺旋、尖劈等。
随便看	closing closing error closing error in coordinate increment closing lemma closing management for soil and water conservation closing overvoltage closing price closing process closing sum closing time closo closo- closo complex closo-complex closo metalloborane closo-metalloborane closo metallocarborane closo-metallocarborane clostridiosis Clostridium infection Clostridium thermocellum clostripain closure closure algebra closure amplitude

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