发布时间:2025-02-01 17:41:30
采用标准试验方法测得的混凝土极限抗压强度用来确定混凝土的强度等级。混凝土试件的标准养生期规定为28天。如果是同条件养护的试件,由同条件的现场要求确定养生期。
同村的一个单身60多岁的老女人我在路上给她说过晚上去找地她小声
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