英语词汇“diurnal 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	diurnal arc
释义	diurnal arc noun : the portion of the diurnal circle of a celestial body that is above the observer's horizon < the diurnal arc of the sun is its apparent path from sunrise to sunset >
随便看	diomedeidae -dione dione dionin dionine dionise dionysia dionysia dionysiac dionysiacal dionysiacally dionysian dionysic dioon diophantine diophantine diophantine equation diopside diopsidic diopsis dioptase diopter diopter dioptometer dioptometry

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