... 主旋转运动：principal rotation motion 主行星：primary planet 主星(相对于卫星来说)：primary body ...
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primary planet pinion 一级行星齿轮
There are primary and satellite power points of energy on the planet.
在这个星球上有主要的和卫星功率点的能量。
The planet, referred to as HD85512b, is about 3.5 times the mass of Earth and may be close enough to its primary star to contain water.
这颗编号为HD 85512b的行星是地球质量的3.5倍，离其主恒星距离较近，足以容纳水分。
Scientists say that the planet is right distance from its primary star that it may contain water.
科学家说这颗行星与其主恒星的距离适中，可能存在水分。
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