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....
Selectmen are required by law to perambulate the bounds every five years.法律规定行政委员每五年应巡查一遍边界.Classics spot perambulate considers as the homicide that invades money sex together the case.经现场勘查认为是一起侵财性的杀人案件....