英语词汇“first contact, first contact of umbra”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	first contact, first contact of umbra
释义	first contact, first contact of umbra 初亏; 主要食相之一，月面和日面外切或月球与地球本影外切的现象。也常指此食相发生的时刻。
随便看	Braun's electrostatic voltmeter Braun's embryotomy knife Braun's fuchsin agar Braun's graft Braun's holly fern Braun's hook Braunsia Braun sign brauns native lignin Braun's noose guide Braun speculum Braun's perforator braun splint Braun's ring Braun's sign braun's solution Braun's speculum Braun's splint braunstein Braun's tenaculum forceps Braun's test Braun's test letter Braunston Braunstone braunstones

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