“perpetual motion machine”的概念、定义、翻译、参考文献-科学参考

单词	perpetual motion machine
释义	perpetual motion machine Encyclopedia 理学〔第一批〕释 perpetual motion machine永动机永远对外做功的机械，是不能实现的空想机械。 Chemistry ＞物理化学＞热力学(含统计热力学)＞释义 perpetual motion machine永动机
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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。