Vca Wellness Exam Cost: Don't Be Fooled! Know Your Rights. Rights

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意思分别如下： 1、vv：沥青混合料试件的空隙率； 2、vma：沥青混合料试件的矿料间隙率； 3、vca：粗集料骨架间隙率； 4、vfa：沥青混合料试件的有效沥青饱和度。马歇尔试验的基本概念.

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