heliacal rising

基本解釋

• [天] 偕日升

英漢例句

雙語例句

• The heliacal rising or setting of a star indicates to within a few days the date in the annual day-cycle.
  星辰偕日升降，說明了其在幾天內(nèi)年日循環(huán)的日期。
• One of the most famous of all ancient scientific observations was that of the heliacal rising of Sirius which warned the ancient Egyptians of the imminent inundation by the Nile.
  古代最有名的一例科學(xué)觀測就是，古埃及人通過觀察偕日升降的天狼星，預(yù)測出即將來臨的尼羅河洪災(zāi)。

• heliacal rising更多例句

詞組短語

短語

• heliacal rising and setting 偕日升降
• heliacal rising or setting 偕日升落

• heliacal rising更多詞組

英英字典

柯林斯英英字典

• the rising of a celestial object at approximately the same time as the rising of the sun

• heliacal rising劍橋字典
• heliacal rising柯林斯字典

專業(yè)釋義

天文學(xué)

• 晨出
• 偕日升