砌体施工,砖基础底标高不同时,应从低处砌起,并应由高处�低处搭砌。这句话怎么理解?? 知乎 Template




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tomski砌体施工,砖基础底标高不同时,应从低处砌起,并应由高处�低处搭砌。这句话怎么理解?? 知乎 coloring