...方向的粘度系数较其他方向小得多，因而 很容易在纺丝过程中形成沿纤维轴高度取向的结构，从而获得优异的力学性能， 芳纶(Kevlar)是最早开发成功并进行工业化生产的液晶高分子纤维，它的高强 度、高棋t以及优良的耐热性使它在增强材料、防护服装、防燃、高温过...
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Kevlar Implants 加血量的防弹衣
N a synthetic fibre, consisting of long-chain polyamides, having high tensile strength and temperate resistance 凯夫拉尔; 聚醯胺纤维 [trademark]
You want to tighten up the kevlar, OK?
你应该穿防弹衣的，好吗？
The polymer was a chemical product that formed the basis for Kevlar.
这种聚合物是一种形成凯拉夫尔主要成分的化学产品。
Kevlar might not have been invented had Stephanie Kwolek been able to seek a career in medicine.
VOA: special.2010.02.09
Kevlar is a fibrous material with qualities that make it able to reject bullets.
VOA: special.2011.03.01
The polymer was a chemical product that formed the basis for Kevlar.
VOA: special.2010.02.09
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