“平行四边形机构”的概念、定义、翻译、参考文献-科学参考

单词	平行四边形机构
释义	平行四边形机构 Encyclopedia 工学连杆机构释 parallelogram linkage平行四边形机构固定平行四边形运动链中的任一杆的机构，用来产生输入杆与输出杆之间的等速转动或者连杆的平动。
随便看	frequency-shift track circuit frequency-size distribution frequency spectrum frequency stability frequency stability criterion frequency stability measurement frequency stabilization frequency stabilized laser frequency standard frequency standards frequency step frequency sweep mode frequency swept laser frequency switching frequency synchronization frequency synthesis frequency synthesized signal generator frequency synthesizer frequency table frequency theorem frequency theory frequency theory of probability frequency thermometer frequency transition frequency upconversion

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。