超阶是一个汉语词语，读音为chāo jiē，意思是指越级擢升的官职。
本文提出了一种基于四阶累积量的ESPRIT超分辨阵列测向算法，该算法适用于任意形状排列的空间阵列。
In this paper, a fourth-order cumulant-based ESPRIT DOA estimation method is presented for arbitrary array.
本文报道了利用超瑞利散射（HRS）技术研究7-羟基喹啉（7HQ）的二阶非线性光学性质。
The second order optical nonlinearity of 7 hydroxyquinoline (7HQ) was investigation by using hyper Rayleigh scattering (HRS) method.
讨论了阶化向量空间和李超代数的基本性质。
The general properties of graded vector space and Lie superalgebras are discussed.
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