剑桥词典a brand name for a very strong artificial material that is not damaged by high temperatures 凱夫拉纖維(一種非常強靭且耐高溫的人造纖維) Helmets and bulletproof vests are often made out of Kevlar. 頭盔和防彈背心通常由凱夫拉纖維制成。 返回 Kevlar