The model of failure distribution is not the single one, so the optimum distribution model is determined by applying method of chart analysis and error area ratio.
针对故障分布模型不唯一这一特点，本文提出采用图分析和误差面积比指数从定性和定量两方面确定其最优分布模型。
Results: the methodological evaluation showed that this method had a good repeatability, and the ratio of common peak 's area of different samples were different.
结果：本研究建立的方法有较好的重现性；不同厂家生产的刺五加注射液共有峰面积的比值有一定差异。
A new method of estimating damp ratio of a underdamped system is presented by calculating area ratio of two contiguous periods, which is applicable to experimentation.
提出了一种适用于实验测量欠阻尼系统阻尼比的方法，即通过计算相邻两个周期波形的面积之比来测定系统的阻尼比。
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