英语单词

perihelion是什么意思

perihelion

英 [,perɪ'hiːlɪən] 美 [,pɛrɪ'hilɪən]
  • n. [天] 近日点;最高点

英文词源


perihelion (n.)
"point at which a celestial body is nearest the Sun," 1680s, coined in Modern Latin (perihelium) by Kepler (1596) from Latinizations of Greek peri "near" (see peri-) + helios "sun" (see sol). Subsequently re-Greeked.

双语例句


1. When perigee and perihelion coincide tidal range is at its greatest.
当月球与地球到达它们的近地点和近日点的时间恰好重合时,就会引起最大的潮汐.

来自辞典例句

2. The anomalistic year is the time between successive transits of the Earth through the perihelion.
近点年是地球连续两次通过近日点之间的时间.

来自辞典例句

3. How much does the direction of perihelion change each orbit?
近日点方向使每个轨道改变了 多少 ?

来自互联网

4. The angular deviation, as observed from the sun, of a planet from its perihelion.
近点距离, 近点角从太阳观察到的行星距近日点的角度偏差.

来自互联网

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