Their main military base was on Charon (Pluto's moon) with many strongholds in the main asteroid belt.
他们主要的军事基地位在凯伦星 （冥卫一），而且在小行星带曾经有好几座军事要塞。
It is the first probe to enter orbit around an object in the main asteroid belt between Mars and Jupiter.
它是为进入火星和木星之间的小行星带中环绕一个天体的轨道而进行的第一次探索。
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.
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。
The object, known as P/2010 A2, was circling about 90 million miles from Earth inthe main asteroid belt between Mars and Jupiter when it was spotted bythe Hubble Space Telescope
哈勃望远镜锁定P/2010A2时，这个物体正在距地球约九千万英里的火星和木星之间主要小行星带盘旋。
ScienceDaily (July 18, 2011) -nasa's Dawn spacecraft on July 16, 2011 became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter.
2011年7月16号，NASA的曙光探测器进入位于火星和木星之间的小行星带，成为进入这一地带的第一个探测器。
At first, astronomers thought it might be a so-called "main belt comet" — a rare case of a comet orbiting in the asteroid belt.
起先，天文学家们认为这种景象不过是所谓的“主带彗星”——即较为少见的轨道在小行星主带内的彗星。
The MPC is hard-pressed to keep up with the tide of incoming data, especially with a volume of main-belt asteroid observations 100 times as great as that for NEOs.
MPC必须及时处理不断涌入的资料，尤其是来自主小行星带的小行星，观测资料量为近地物体的100倍以上。
The MPC is hard-pressed to keep up with the tide of incoming data, especially with a volume of main-belt asteroid observations 100 times as great as that for NEOs.
MPC必须及时处理不断涌入的资料，尤其是来自主小行星带的小行星，观测资料量为近地物体的100倍以上。
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