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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。
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The primary goal was to study the passing of the planet Venus across the sun.
最主要的目的是研究横过太阳的金星。
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The primary goal was to study the passing of the planet Venus across the sun.
最主要的目的是研究横过太阳的金星。
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