“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	predecessor function predecidual cell predecomposition predefine predefined pre-deflection predegassing Pre-delivered Xingjuan Poems and Literature in the Tang Dynasty predeposition pre-design predesign predestination predetection predetection dedispersing predetermination predetermined predetermined harmony theory predetermined motion time standard approach predetermined value predetermined variable predicate predicate-argument structure predicate calculus predicate calculus with identity predicate constant

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。