作卷烟纸用的材料，过滤纸和过滤嘴接缝纸材料，包括定向可透气部分用的材料。透气性的测定。
Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone. determination of air permeability.
透气性测定通过恒压气源吹气测压法实现，透气性探头的核心部件是微压差传感器。
Permeability is measured by constant pressure air source blowing, core of the detector is micro differential pressure sensor.
介绍了测定消失模涂料透气性的方法及过程。
The permeability measuring method and process of the lost foam pattern coating layer was introduced.
介绍了测定消失模涂料透气性的方法及过程。
The permeability measuring method and process of the lost foam pattern coating layer was introduced.
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