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	height above terrain (hat) height above the hull height above touchdown height above touch-down height above touchdown (hat) height above water height accuracy height-adjustable height adjustable multi-purpose bench vice height adjustable type crutch height adjuster height-adjusting device for nets height adjusting ring height-adjustment height adjustment height-adjustment lock height adjustment of furniture height adjustment pad height adjustment suspension height altitude height analyser height analysis method height analyzer height and chest circumference indcx height and distance

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