柯林斯英汉双解大词典
inner planet
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1.
N any of the planets Mercury, Venus, earth, and Mars, whose orbits lie inside the asteroid belt 内行星
双语例句权威例句
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But, unlike the cores of the inner planets, the Moon's core contains little or no iron, while the typical planet-forming materials were quite rich in iron.
但是，与内行星的核心不同，月球的核心几乎不含铁，而典型的行星形成物质则富含铁。
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The dividing line between the bright and shaded regions of the disk of the moon or an inner planet.
明暗界线：月亮或内行星亮和暗的区域之间的分界线。
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They cross in front of their star about once every 19.24 and 38.91 days, but those times can vary by up to 4 minutes for the inner planet and 39 minutes for the outer one.
它们每次经过恒星面前的时间，分别大约是19.24天和38.91天，但这个时间间隔有一定的变动范围，里层行星在4分钟范围内，外层行星在39分钟范围内。
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