加权算术平均数
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weighted arithmetic average price 加权算术平均价格
weighted arithmetic average price index 加权算术平均价格指数
·2,447,543篇论文数据，部分数据来源于NoteExpress
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；
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