chain drive
链传动
链拖动
链条传动
链驱动
链传动机构
链式喂矿机
链式模式
驱动链
动力装备
chain drive drying equipment
chain drive pumping unit
vertical circulation parking equipment with fixed track chain drive
variable region gene of heavy chain and light chain
2 or 3 Stand 4-High Tandem Mill
2-D tandem twin cylinders
Aluminum Hot Rolling Tandem Mill
aluminum hot tandem rolling line