另外可能近似测试出羽毛羽绒不穿透性的方法是：测量面料的空气渗透性。
Another possibility to check approximately the feather and down proofness is to measure the air permeability of the fabric.
他们在地下室的同样的测试，看看如何冷空气能渗透到主屋。
They did the same test in the basement to see how cold air could penetrate into the main house.
认为水渗透性试验、氯化物渗透性试验、空气渗透性测试各适合于不同的场合和情况，不存在某一种强于另一种的问题。
It pointed out that, the water permeability test, the chloride permeability test and the air permeability test are suit for different situation and they can not be replaced each other.
微孔材料的O2渗透特别适用于需要新鲜空气的速冻蔬菜的应用，能够测试最佳储藏时间。
The O2 permeation of Micro-perforated materials - particularly for fresh vegetable applications which need to respirate for optimum shelf life can now be measured using the remote cell and the OpTech?
微孔材料的O2渗透特别适用于需要新鲜空气的速冻蔬菜的应用，能够测试最佳储藏时间。
The O2 permeation of Micro-perforated materials - particularly for fresh vegetable applications which need to respirate for optimum shelf life can now be measured using the remote cell and the OpTech?
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