“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。
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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。