“permanent shadow region”的概念、定义、翻译、参考文献-科学参考

单词	permanent shadow region
释义	permanent shadow region 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	William Somerset Maugham Williamson Williamson ether synthesis William Southam William Spencer Vickrey Williams p＋1 factorization method William Stafford William Standish Knowles William Stanley Merwin William Steinberg William Stetson Merrill William Stubbs William Styron William Tecumseh Sherman William Tell William Teo William Thomas Stead William Thompson William Thomson William Thomson, 1st Baron Kelvin William Tyndale William Vacanarat Shadrach Tubman William Walker William Walton William Wells Brown

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