英语语法分析

There is no need for solid solution and overaging pretreatments in the superplastic deformation process.

可省去固溶与过时效预处理工序。

Compared with the samples prepared by normal aging treatment, the test samples prepared by overaging treatment have better wear resistance.

采用固溶过时效处理之后，耐磨性优于正常固溶时效处理的试样。