The physical properties of rubber accelerator 2 - mercapto benzothiazole and main methods for its preparation are introduced.介绍橡胶硫化促进剂 2- 巯基苯并噻唑的物理性质和主要的制备方法.He eased his foot off the accelerator.他松开了油门。Today many radioi...
He eased his foot off the accelerator.他慢慢松开油门。The engine stalled. He pressed the accelerator hard.发动机熄火了。他用力踩油门。He pressed down the accelerator pedal of his car.他踩下汽车的加速器踏板....