By bringing forward the concept of sliding coefficient, it is proved that the sliding coefficient is fitted to the principal of weighted arithmetic average regarding the sliding block as weight.
提出滑动系数概念，证明了滑动系数符合以重量为权的加权平均原则；
Different characteristics of the design parameters for reasonable scoring mechanism, and three parameters weighted arithmetic to establish a reasonable joint rating system.
针对不同的特征参数设计合理的评分机制，并对三个参数进行加权运算，以建立一个合理的联合评分系统。
Different characteristics of the design parameters for reasonable scoring mechanism, and three parameters weighted arithmetic to establish a reasonable joint rating system.
针对不同的特征参数设计合理的评分机制，并对三个参数进行加权运算，以建立一个合理的联合评分系统。
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