用压差法测试塑料薄膜的透气性，是一个长期使用的主流测试方法。
One of the main methods to test the gas permeability is using partial pressure difference.
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.
介绍了研制具有高透气性、高吸水性、高抗菌性水刺法非织造布的过程及其产品的测试结果。
Course and product testing result of high permeability, high water absorbed, high anti-bacterial spun-laced nonwovens are introduced in the paper.
研究了钻孔流量法反演煤层透气性的基本方法和特点，确定了煤层透气性反演的基本条件。
The basic method and features of coal seam permeability by using borehole flow method inversion is studied, the basic condition of coal seam permeability inversion in determined.
研究了钻孔流量法反演煤层透气性的基本方法和特点，确定了煤层透气性反演的基本条件。
The basic method and features of coal seam permeability by using borehole flow method inversion is studied, the basic condition of coal seam permeability inversion in determined.
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