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固特异（Goodyear）公司经过10年努力研制出一种新的越野汽车轮胎——WranglerMT/R。 为延长胎面寿命和改善抓地能力所用的轮胎添加剂二氧化硅，现又在WranglerMT/R越野胎的胎壁上起增加耐久性的作用。二氧化硅悬浮于同样的高分子聚合物链中，也固定住常用的炭黑分子。二氧
Goodyear has worked hard for 10 years on a new off-road vehicle tire, the WranglerMT / R. The tire additive silica used to prolong the life of the tread and to improve grip performance now plays a role in increasing the durability of the sidewalls of the Wrangler MT tire. Silica suspended in the same polymer chain, also fixed the common carbon black molecules. Dioxygen