英语词汇upper main sequence怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	upper main sequence
释义	upper main sequence 简明释义上主星序网络释义 1 ?上主星序 Upper Main Sequence(上主星序), 此释义来源于网络辞典。双语例句 1 As these luminous and massive stars exhaust their hydrogen fuel, they begin to depart from the upper end of the main sequence. 当这些亮而且质量大的恒星耗尽了氢燃料时，它们就开始从主星序上端脱离。 2 A heavy star at the upper end of the main sequence has a rather different later history. 在主序上端的大恒星具有很不相同的晚年史。
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