“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	intervention analysis intervention devices and instruments intervention level intervention materials intervention-oriented government functionmodel intervention plan intervention set interventricular septum intervertebral disc intervertebral disc degeneration intervertebral muscle intervertebral surface intervertebral symphysis interview interview data Interviewee interview environment interviewer bias interviewing method interviews in policing affairs interview talk show program Interview Today interview with convicts held by the superior authority inter vivos trust inter wave

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。