英语词汇upper central series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 central series
释义	upper central series 简明释义上中心群列网络释义 1 [数]?上中心列 ... 上正合序列 coexact sequence 上中心列 upper central series 上自由的 cofree ... 短语 1 Group upper central series 幂零群 2 upper p-central series 上p 双语例句 1 The Lower Carboniferous Ceshui and Upper Permian Longtan coal series are most important in Southeast China, and can both generate and bear gas greatly in the Lianyuan coal basin, Central Hunan, China. 湘中涟源煤盆地早石炭世测水组、晚二叠世龙潭组煤系是中国东南诸省境内最重要的煤系，具有较大的生气、储气能力。
随便看	preemptive scheduling preemptive scheduling strategy preemptive service preemptive shares preemptive strike preemptive strike pre - emptive strike pre-emptive strikes preemptive strike preemptive war preemptor preemptor preemptor preemptor preemptory pre-empt resources preempts preempts pre-empt preempt search preempt tone preem pre emulsified preemulsion preemulsion

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。