“永久阴影区”的概念、定义、翻译、参考文献-科学参考

单词	永久阴影区
释义	永久阴影区 Encyclopedia 理学〔月球构造〕释 permanent shadow region永久阴影区在自转轴与其黄道面交角很小的天体的极区存在的常年未受阳光直射的区域。简称PSR。
随便看	media ownership media price media price subsidies media price upside media pricing strategy media processor media product media product combination media production media production management media production marketing media production process media production process reengineering media product life circle media product line media promotion strategy media propaganda and popularize media propagation effect evaluation media property rights media property rights system media reality media reform media relations media retrenchment strategy media revenue

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。