It is important to do well the construction waterproof work. The design is essential prerequisite.

做好建筑防水，设计是前提，保证设计质量有三个重要环节。

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It is important to do well the construction waterproof work. The design is essential prerequisite.

做好建筑防水，设计是前提，保证设计质量有三个重要环节。

youdao