Examining the influence of the sports factors on the step exponent of colleges students with the experiment method, questionnaire survey method and Mathematical Statistics method.
采用实验法、问卷调查法和数理统计法，观察运动因素对大学生台阶指数的影响。
This article introduces examining principle and methods checking strong acid concentration with electromagnetism induction method and analyses checking experiment data and researches its stability.
介绍了用电磁感应法检测强酸浓度的测量原理与方法，并对测量实验数据进行了分析，对该方法的稳定性进行了研究。
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