针对含有非匹配条件的范数有界线性不确定中立型时滞系统，研究该类系统的鲁棒稳定和二次性能控制问题。

The problem for the robust stability and quadratic performance control of linear neutral time-delay systems is studied with non-match norm-bounded uncertainties.

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刚才的条件基本上是对于母语国家的外教来说的，对于非母语的外教来说，学校的匹配相对容易一些。

The terms of the original is basically for foreign language teachers in the country, for non-native speakers of foreign teachers, the school is relatively easy to match.

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在均匀格点的基础上，给出了基于柱坐标的全矢量非均匀格点有限差分方法(FDM)，并采用了完美匹配层(PML)边界条件。

A general formula is derived for a finite-difference method (FDM) with non-uniform grids in a cylindrical coordinate system, and a perfectly matched layer (PML) is used for the boundary treatment.

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