它不仅耐磨,而且具有良好的透气性。
One of the main methods to test the gas permeability is using partial pressure difference.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。
Radial and tangential gas permeability of Masson pine wood were measured respectively in this paper.分析和讨论了影响马尾松木材渗透性及其各向异性的机理。