waterproof processing of roofing facilities
...屋面设施的防水处理 [gap=289]; roof drainage way; roofing drainage gradient; roofing temperature deformation; waterproof processing of roofing facilities ..
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waterproof processing of roofing facilities
屋面设施的防水处理
以上为机器翻译结果，长、整句建议使用 人工翻译 。