it does, it requires fuel to maintain its orbit. When the fuel
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送交者: steven 于 2008-09-29, 16:48:57:
回答: 不需要动力, 其他消耗能量，一般是用自身的太阳电池 由 JJZ 于 2008-09-29, 16:33:23:
is out, the SV will not be able to stay there for very long, and eventually starting to rentry.
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