使用合适的设计，使燃油管在输送汽油、柴油时减少了燃料损耗。降低了气体渗透性。允许软管输送其它气体。
Application: Suitable designed for usage in fuel hose where resist to gasoline, diesel and alcohol-enhanced fuels. low gas permeability allowed the hose for other gas tight application.
对于大多数特种气体，推荐使用CTFE，而不是PTFE，这是因为CTFE对氧气和水蒸汽的渗透性更差，冷变形也较小。
For most specialty gases, CTFE is recommended over PTFE because it is less permeable to oxygen and moisture, and evidences less cold flow.
然而塑料软包装材料主体结构是塑料聚合物，对气体有一定的渗透性，因此并不能完全代替金属、玻璃包装。
However, the main structure of plastic flexible packaging materials are plastic polymers, has some permeability to gas, and therefore can not fully replace the metal and glass packaging.
研究了水、氯离子及气体在混凝土中的渗透与扩散的机理，分析了影响混凝土渗透性的主要因素及有待进一步研究的方向，并总结了混凝土渗透性指标的测试方法。
Research mechanism of diffusion and infiltration of concrete, analyze the main influence factor of the concrete permeability and summarized the method of testing of the penetrating index of concrete.
细胞的间隔空间会是渗透性的，足以让有毒的气体通过它排出。
The space between the cells should be porous enough to allow gases that are toxic to pass through.
细胞的间隔空间会是渗透性的，足以让有毒的气体通过它排出。
The space between the cells should be porous enough to allow gases that are toxic to pass through.
应用推荐