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1·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。

2·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。