名词
中文翻译：Unknown
同义词：
['positive orbit', "positive orbital closure例句：1. The satellite's orbit was closed by the Earth's gravity.（卫星的轨道被地球的引力所闭合。）2. The spacecraft's trajectory was closed by the sun's gravitational pull.（宇宙飞船的航线被太阳的引力所闭合。）"]
例句：
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1. The satellite's orbit was closed by the Earth's gravity.
卫星的轨道被地球的引力所闭合。
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2. The spacecraft's trajectory was closed by the sun's gravitational pull.
宇宙飞船的航线被太阳的引力所闭合。
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3.The planet's orbit is closed by the sun's gravitational force.
行星的轨道被太阳的引力所闭合。