Some affecting factors of serum P21 and the correlation of the exposed time and serum P21 were analysed.
分析影响血清p 21蛋白水平的因素、及炼焦工龄与血清p 21蛋白表达水平的关系。
The risk factors of increasing serum P21 were the exposed time and pickle foods and the protective factor was fresh fruits.
炼焦工龄、多食腌菜是导致血清p 21蛋白水平升高的危险因素，多食新鲜水果为保护因素。
A method for determination of hafnium in zirconium under Ar-O_2 controlled atmosphere was developed and the conditions of ratio of Ar-O_2, excited current and exposed time were optimized.
研究了在氩氧控制气氛条件下锆中铪的分析条件，对氩氧比、激发电流、曝光时间等实验参数进行了选择。
A method for determination of hafnium in zirconium under Ar-O_2 controlled atmosphere was developed and the conditions of ratio of Ar-O_2, excited current and exposed time were optimized.
研究了在氩氧控制气氛条件下锆中铪的分析条件，对氩氧比、激发电流、曝光时间等实验参数进行了选择。
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