As mentioned earlier, the discovery that many asteroids have very low densities( as low as1.2 grams per cubic centimeter) indicates that many of these bodies are highly porous piles of rubble.
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但如前所述的发现,许多小行星密度很低(至低到每立方公分1.;2公克)显示这类天体有许多是充满空隙的碎石集合体。
单词 As mentioned earlier, the discovery that many asteroids have very low densities( as low as1.2 grams per cubic centimeter) indicates that many of these bodies are highly porous piles of rubble. 的词典定义。@海词词典-最好的学习型词典
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