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-复社网

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	stub-survivor curve stub survivor curve Stub's wire gauge stub switch stub-switch stub tag stubtag stubtail stub-tail stub-tailed stub-tailed morpho stub-tailed morphos stub tea stub teeth stub tenon stub-tenon stub thread stub thumb stub ... toe stub-toed stub-tooth stub tooth stub-tooth gear stub tooth gear stub-to vessel weld

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