drifting dust 中文意思是什麼
drifting dust
解釋
低吹塵-
Scientists know they are there, because the rings would not survive without them : the dust grains that compose jupiter ' s rings are too small to remain in orbit for long, before drifting into space or falling into the planet
科學家們知道它們就在那兒,因為沒有它們就沒有光環:組成木星光環的塵埃顆粒太小了,在飄入太空或墜入行星前沒辦法在軌道上停留很久。
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