Tanks are insulated by polyurethane foam with a vapor barrier which provides weather protection.

用聚亚安酯泡沫把储存罐和防止恶劣天气的蒸气屏障隔离开。

This durable, all purpose product has a double ply, grey polyester vapor barrier with spiral reinforcements.

这种持久的，通用的双层产品，具有灰色聚酯防潮层以及螺旋加固层。

A carbon steel liner is utilized to provide a leak proof vapor barrier for containment of concrete construction.

为防止混凝土结构的安全壳泄露，其内部有碳钢的衬垫。

Another layer of felt is laid on top and finally a plastic vapor barrier is applied before the finish concrete is poured.

在铺上水泥之前，另外一层毛毡和一层塑料薄膜再覆盖在焊好的铜板上。

Air-conditioning metal ducts passing through non-conditioned spaces should be wrapped with thermal insulation enclosed in a vapor barrier .

经过非空调空间的空调金属风道应当用保温材料裹起来，保温材料外面加防潮层。