vapour barrier的意思|示意

Structural softwood decking beneath a polyethylene vapour barrier and deep I-beam rafters supports 500 mm of cellulose fibre insulation.

结构软木装饰在聚乙烯隔汽层下面，深的I型梁、椽支撑着500 m m厚的纤维板保温层。

All the interior components are prefabricated up to the vapour barrier.

所有的室内组件和隔汽层都是预制的。

Discusses design requirements and some important points of duct insulation and vapour barrier in cold air distribution systems, and presents in details the concerns in construction of duct insulation.

探讨了低温送风空调系统中风管保冷与隔汽层的设计要求及设计中的注意事项，并详细论述了低温风管保冷层施工中应注意的问题。