Planetary scientists think that they come from asteroids, which are fragments of planetesimals that never went on to form planets and have remained in deep freeze ever since.
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尘埃颗粒吸收星光后,再发射短波长的红外光,确保热能传达到圆盘内部最阴暗的角落。
单词 Planetary scientists think that they come from asteroids, which are fragments of planetesimals that never went on to form planets and have remained in deep freeze ever since. 的词典定义。@海词词典-最好的学习型词典
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