发布时间:2025-02-08 22:02:42
沥青含量=油石比/(100-油石比)=4/(100-4)=4.17%
沥青用量=1000*2.4密度*1.02损耗*4.17%=102t
急急急郑州的高手问个常识问题各种复印纸的分类分为a416k18k是什么意思
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