在研究测量误差分析、模型误差统计检验、变形分析、可靠性分析和优化设计等问题中，经常需要对统计量分布的非中心参数进行估计。
The noncentral parameter of statistic distribution often needs to be estimated in error analysis, statistical test, deformational analysis, reliability analysis, and optimum design, etc.
利用非参数测试对比了中心医院和周边医院的相关情况。
Comparisons between central and peripheral hospitals were performed using non-parametric tests.
确定了非圆齿轮的基本参数：基础圆半径、偏心率、变形距和中心距比例系数。
The basic parameters of non-circular gear are determined, such as primary circle, eccentricity ratio, eccentricity throw and proportional coefficient of center distance.
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