perihelion

音标发音

• 英式音标 [ˌper.ɪˈhiː.li.ən]
• 美式音标 [-ə]

基本解释

• n.近日點；最高點

同根派生

• perihelion相关词

英汉例句

用作名詞 (n.)

• A comet is at perihelion when it is closest to the sun.
  彗星最接近太陽時，它就是在近日點。
• The anomalistic year is the time between successive transits of the Earth through the perihelion.
  近點年是地球連續兩次通過近日點之間的時間。

• perihelion更多例句

英英字典

劍橋英英字典

• 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

• perihelion剑桥字典
• perihelion柯林斯字典