NN机械光开关
NN mechanical optical switch
标准机械压片机
standard-type mechanical tableting machine
电动机械压下
Electro-mechanical screwdown
电化学机械光整加工
electrochemical mechanical finishing
电机机械式扫描
electromechanical scannig
scanning
electromechanical
锻压机械液压传动
hydraulic transmission in forging machinery