perihelion
音標(biāo)發(fā)音
- 英式音標(biāo) [?per.??hi?.li.?n]
- 美式音標(biāo) [-?]
基本解釋
- n.近日點(diǎn)；最高點(diǎn)
英漢例句
- A comet is at perihelion when it is closest to the sun.
彗星最接近太陽時(shí)，它就是在近日點(diǎn)。 - The anomalistic year is the time between successive transits of the Earth through the perihelion.
近點(diǎn)年是地球連續(xù)兩次通過近日點(diǎn)之間的時(shí)間。
用作名詞 (n.)
英英字典
- the point in an object's orbit (= a curved path in space around a planet or star) around the sun at which the object is closest to the sun