英语语法分析

Objective: To sum up the characteristics of X-ray and clinic for astragal putrescence.

前言：目的总结距骨缺血坏死的临床X线特点，提高对本病的诊断水平。

Objective: The technology of Astragal us Injection was selected through experiment study.

目的：通过实验研究优选黄芪注射液的制备工艺。