英语词汇dual hierarchies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	dual hierarchies
释义	dual hierarchies 简明释义双重等级网络释义 1 ?双重等级双重等级双语例句 1 A to be determined coefficient method for finding dual operators of hierarchies of non-linear evolution equations is proposed. 本文提出了寻求非线性演化方程的对偶算子的待定系数法。
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