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。
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.
在所有的内行星中，只有水星和地球拥有这样一个领域。
Of all the inner planets, only Mercury and Earth boast such a field.
同样，由于它们的相对位置，四颗类木行星被称为外行星，而类地行星被称为内行星。
Also, because of their relative locations, the four Jovian planets are known as the outer planets, while the terrestrial planets are known as the inner planets.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
内行星和太阳轨道路径。
我发现了爱神星人对内行星人有着莫名的好感。
I've found that the Eros person has a "crush" on the planet person.
明暗界线：月亮或内行星亮和暗的区域之间的分界线。
The dividing line between the bright and shaded regions of the disk of the moon or an inner planet.
所以，除了拜信使号所赐带来的新关注，水星仍将是近期最后被探索的内行星。
So, despite all the fresh attention Messenger will give it, Mercury will remain the least-explored of the inner planets for some time yet.
当对方的内行星在落入你的第七宫（尤其是太阳），这种吸引力是最强的。
The strongest indicator of physical attraction is when someone's inner planets fall in the 7th house (especially the Sun).
这项发现也暗指内行星，或许包含类似地球的行星，可能也是普遍存在的。
This discovery carries the tantalizing implication that interior planets, possibly including Earth-like planets, might also be common.
有很多小行星的轨道可以把它们带到太阳系的更内层，有时甚至会使它们与地球或其它内行星相撞。
A number have orbits that take them closer into the solar system that sometimes lead them to collide with Earth or the other inner planets.
这些最初的地球卫星发射的成果引发了探索月球和太阳系内行星的行星际探测器的研制。
The results of these first Earth satellite launches were the genesis of the development of interplanetary stations to investigate the Moon and planets of the Solar System.
一种解释是HIP 13044在红巨星阶段吞噬了它的一些带内行星，这可能使它自转得更快。
One explanation is that HIP 13044 swallowed its inner planets during the red giant phase, which would make the star spin more quickly.
大约7000个已知的近地天体在内行星之间疯狂运行，其轨道路径收到太阳重力和热量的影响。
About 7,000 known NEOs loop wildly among the inner planets, following paths that shift in response to gravity and the Sun's heat.
最近，科学家在主小行星带中也发现了一些彗星——这些主带彗星可能是类地内行星上水的关键来源。
Recently, scientist have also discovered comets in the main asteroid belt -these main-belt comets might be a key source of water for the inner terrestrial planets.
来自太阳的太阳风以其强大的力量吹走了内行星上的氢和氦一类的轻元素，只留下了更小的石质星球。
The solar wind from the sun was so powerful that it swept away most of the lighter elements, such as hydrogen and helium, from the innermost planets, leaving behind mostly small, rocky worlds.
水星在地内行星中是最小的行星（直径4 880公里），同时也是靠太阳最近的行星（5800万公里）。
The planet Mercury is the smallest of the inner planets (4, 880 km/3, 032 mi in diameter), and the closest to the Sun (58 million km/36 million mi - or 3.2 light minutes).
检查了创世纪号太空船收集的太阳风样品之后，科学家们发现太阳系内行星的形成和人们之前想的不大一样。
Or so say scientists who, after examining solar wind samples collected by the Genesis spacecraft, conclude that the inner planets of our solar system formed a little differently than we'd thought.
当然，在大约50亿万年内，我们的太阳将会变成一颗红巨星，并且很可能将吞噬掉内行星和这些行星的卫星。
Of course, in about five-billion years, our Sun will become a red giant and likely will swallow up the inner planets and the planets' accompanying moons.
Gliese 581g是环绕红矮星gliese 581两颗行星中的其中一颗，它的发现使该行星系内行星数量增加至6颗。
Gliese 581g is one of two new worlds the team discovered orbiting the red dwarf star Gliese 581, bumping that nearby stars family of planets to six.
Gliese 581g是环绕红矮星gliese 581两颗行星中的其中一颗，它的发现使该行星系内行星数量增加至6颗。
Gliese 581g is one of two new worlds the team discovered orbiting the red dwarf star Gliese 581, bumping that nearby stars family of planets to six.
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