英语语法分析

The matrices of linear quadratic optimal regulators not yet be resolved perfectively.

线性二次型最优调节器的权矩阵选择问题至今尚未得到较好解决。

Also, the small shock waves exit in the jet under the practical operation conditions because it is hard for the jet to perfectively work in the design conditions.

在实际的操作环境下，很难做到完全满足喷孔的设计条件，产生了微弱的斜激波。