perihelia

常見(jiàn)例句

• A comet is at perihelion when it is closest (=very close) to the sun.
  彗星最接近太陽(yáng)時(shí)，它就是在近日點(diǎn)。
• A comet is at perihelion when it is closest to the sun.
  彗星最接近太陽(yáng)時(shí)，它就是在近日點(diǎn)。
• How much does the direction of perihelion change each orbit?
  近日點(diǎn)方向使每個(gè)軌道改變了多少？
• The angular deviation,as observed from the sun,of a planet from its perihelion.
  近點(diǎn)距離，近點(diǎn)角從太陽(yáng)觀(guān)察到的行星距近日點(diǎn)的角度偏差
• When perigee and perihelion coincide tidal range is at its greatest.
  當(dāng)月球與地球到達(dá)它們的近地點(diǎn)和近日點(diǎn)的時(shí)間恰好重合時(shí)，就會(huì)引起最大的潮汐。
• The angular deviation,as observed from the sun.of a planet from its perihelion.
  近點(diǎn)距離，近點(diǎn)角從太陽(yáng)觀(guān)察到的行星距近日點(diǎn)的角度偏差
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