英语词汇“nocturnal arc”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	nocturnal arc
释义	nocturnal arc Astron. the portion of the diurnal circle that is below the horizon of a given point. Cf. diurnal arc. [1695-1705]
随便看	rubrum lily rubstone Rubtsovsk ruby Ruby ruby-crowned kinglet ruby glass ruby silver ruby spinel ruby-throated hummingbird Rubáiyát of Omar Khayyám, The ruche ruching ruck rucksack ruckus ruction Ruda Slaska rudbeckia rudd rudder rudderfish rudderhead rudderpost rudderstock

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