超细轮胎胎面胶粉
ultra -fine tyre rubber powder
双轮双铧犁
double-shared double wheeled plow
双轮双喷嘴式水轮机
twin wheel twin nozzle type turbine
双面双弧
double side double arc welding
双面双密度软磁盘
double side & double density floppy disk
小模数齿轮双面咬合检查仪
fine-module gear inspection tester by double-flank method
工程胎胎面缠绕机
engineering tire tread winding up machine