航海航天行业专业英语术语第115页 ... 周谱关系变星 period-spectrum relation 周期（性）流星雨 periodic stream 周期变星 periodic variable ...
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科学家们已发显着显的迹象表明：太阳有一个小弟弟，它是一颗暗星，其偏爱轨道导致彗星群和流星雨周期性降落地球。
Scientists have found compelling evidence that the Sun has a baby brother, a dark star whose eccentric orbit is responsible for periodically showering the Earth with comets and meteorites.
科学家们已发现明显的迹象表明：太阳有一个小弟弟，它是一颗暗星，其偏心轨道导致彗星群和流星雨周期性降落地球。
Scientists have found compelling evidence that the Sun has a baby brother, a dark star whose eccentric orbit is responsible for periodically showering the Earth with comets and meteorites.
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