“简单机械”的概念、定义、翻译、参考文献-科学参考

单词	简单机械
释义	简单机械 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	angle of attack angle of circumference angle of commutation angle of contingence angle of declination angle of deflection angle of departure angle of depression angle of deviation angle of diffraction angle of diffraction, diffraction angle angle of dip angle of divergence angle of eccentricity angle of elevation angle of emergence angle of emission angle of field of view angle of final open pit slope angle of friction angle of gradient of the hole angle of image field of view angle of impact angle of impedance angle of incidence

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。