The test results showed that the scorch time of rubber compound ex tended by adding nano-zinc oxide, and the tensile strenght, abrasion resistance a nd aging property of its vulcanizate improved;

试验结果表明，纳米氧化锌可延长胶料的焦烧时间，提高硫化胶的拉伸性能和耐磨性能，硫化胶的耐老化性能也较好；

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That includes editors whose job is to "enthusiastically" scorch cars around cones on a test track, brake as hard as possible again and again, and hammer the throttle repeatedly in an attempt to produce top performance figures.

FORBES: Test Drives