也没办法避免……双月碰撞属于低速碰撞，”圣克鲁兹州加利福尼亚大学天体科学家兼本次研究论文撰写者埃里克·埃斯帕格说。
This big splat is a low-velocity collision, " said study co-author Erik Asphaug, a planetary scientist at the University of California, Santa Cruz.
也没办法避免……双月碰撞属于低速碰撞，”圣克鲁兹州加利福尼亚大学天体科学家兼本次研究论文撰写者埃里克·埃斯帕格说。
This big splat is a low-velocity collision," said study co-author Erik Asphaug, a planetary scientist at the University of California, Santa Cruz.
在近期的《天体物理与空间科学》杂志上，他对物质带有一个正引力荷，而反物质带有一个负引力荷的假设进行了概述。
According to his idea, outlined in the current issue of the journal Astrophysics and Space Science, matter has a positive gravitational charge and antimatter a negative one.
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