但是由于硅油本身的结构特点，容易给织物带来黄变，使织物的亲水性降低，透气量下降。
However, due to the structural characteristics of silicone oil itself, it easily brought the fabric yellowing, the fabric hydrophilic nature was reduced and the permeability was declined.
整理后的织物毛羽量减小，织物变得较蓬松，悬垂系数、透气量、白度和毛效均有不同程度的改善。
After enzyme treatment, the fabric became more fluffy, the amount of fabric hairiness reduced. Drape coefficient, air permeability, whiteness and capillary effect were improved to some extent.
在改变伞衣面积和透气量的情况下，在定常风洞中对小型平面圆形伞的开伞过程进行了动态试验，研究了开伞过程中伞衣形状和伞衣所受载荷之间的动态关系。
The opening process of the circle flat parachute with the differential size and the differential vent position of the canopy by the steady flow wind tunnel were dynamic tested.
美观大方、穿着舒适、排气量大、透气性好、柔软性和张力相结合，达到尽善尽美。
It is artistic and in good taste, it is comfortable for dressing, it has big exhaust, ventilate well. It is perfect cause of combine soft with tension.
由于松软煤层的瓦斯含气量高而透气性又极差，一直是本煤层瓦斯抽采的难点和重点。
As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.
由于松软煤层的瓦斯含气量高而透气性又极差，一直是本煤层瓦斯抽采的难点和重点。
As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.
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