发布时间:2025-01-31 05:10:12
基础做一个评定,基础以上也做一个评定.基础3组,主体结构6组,小于10组的采用非数理统计进行评定.
平均值≥规定混凝土强度×1.15
还要满足 最小值≥规定混凝土强度×0.95
基础强度例如:20 ;25 ;20
平均值21.7
21.7≥15×1.15
20≥15×0.95
色彩的把握是彩页宣传册印刷成败的关键一般通过什么参数去把握呢
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