不过，新系统将依托于前述联合精确空投系统的超轻型版本，以便能渗透进以往被认为不能穿透的区域。
The new system, however, will rely on ultralight versions of the aforesaid JPADS in order to sneak into locations that were previously thought impossible to penetrate.
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.
采用柔性壁渗透仪获得了固化污泥中重金属的穿透曲线，并采用遗传算法反演了固化污泥的水动力弥散参数。
The breakthrough curves for heavy metals of solidification sludge were obtained by flexible-wall permeameter and the hydrodynamic dispersion parameters were acquired by genetic inverse method.
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