“PTR”的概念、定义、翻译、参考文献-科学参考

单词	PTR
释义	PTR Encyclopedia 工学2K以上低温制冷机释 pulse tube refrigerator; PTR脉管制冷机利用高压气体被绝热抽空而达到制冷目的的制冷机。
随便看	nonassociative product non-associative ring nonassociative ring nonassociative structure nonassociative topological algebra non-asymptotic non-asymptotic direction non-asymptotic distribution non-atomic nonatomic nonatomic game nonatomic measure nonatomic measure space nonatomic space non-autonomous non-autonomous differential equation non-autonomous dynamical system non-autonomous system nonautonomous system non-autonomous system of differential equations nonautonomous system of differential equations non-averaging sequence non-axisymmetrical configuration non-axisymmetrical distribution non-axisymmetric disk

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。