插齿机主传动机构
main gear of slotting machine
粗轧主传动电机设计
Design of Roughing Roll Primary Driving Motor
假捻主传动轴
false twist main driving shaft
新型短链主传动
New Design of Main Drive with Short Driving Chain
悬挂式主传动组
Main Driven Set with Overhang Type
轧机主传动
the main drive of the mill
Main Drive System of Mill
Mine hoist driving system
mill main drive
轧机主传动系统
main drive system of rolling mill