发布时间:2025-01-31 05:33:09
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
高科电话座机型号hcd737 tsdl 836如何调节音量大小
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