The external wall seepage is one of common quality faults which could not be easily resolved in building engineering.
外墙渗水是质量通病中的一种顽疾，它需要材料、设计、施工、使用各方面的综合治理。
The external wall seepage is one of common quality faults which could not be easily resolved in building engineering.
外墙渗水是质量通病中的一种顽疾，它需要材料、设计、施工、使用各方面的综合治理。
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