“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	joint trial by Three Judicial Offices Joint-up Government joint variable theorem joint variation joint venture for research and development joint video team,JVT joint waterproofing joint-wing aircraft joint work Jo Jeong-rae Jo Ji-hun jojoba family Jokadu Joke joke telling Joliot crater Joliot-Curie，Frédéric and Irène Jolly-Seber mark recapture method Jolly spring balance Joluo Jomda Xian Jo Mielziner Jomo Kenyatta Jo Myung-hee Jonas Avezius

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。