Fanaroff &Riley observed that there was a reasonably sharp divide in luminosity between the two classes: FRIs were low-luminosity, FRIIs were high luminosity.
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因此电浆体必然是中性的,质子或正子必然是其中的成分之一,但是没有办法从同步加速辐射中直接观察出微粒的种类。
单词 Fanaroff &Riley observed that there was a reasonably sharp divide in luminosity between the two classes: FRIs were low-luminosity, FRIIs were high luminosity. 的词典定义。@海词词典-最好的学习型词典
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