dampness penetration

常见例句

双语例句

• But its weak damp proofing requires that a special ventilated system and dampness damping system must be available, otherwise it could lose its functions due to erosive penetration.
  但其不耐潮的特性则必需配用特别的屋面通风排潮系统，否则可能被腐蚀穿透而失去使用功能。
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