chain drive
链传动
链式喂矿机
链拖动
链条传动
链驱动
链式模式
驱动链
链传动机构
动力装备
chain drive characteristics
chain drive drying equipment
chain drive inequality coefficient
chain drive pumping unit
conveyor chain drive sprocket
conveyor drive chain adjustment stud
conveyor drive chain tension
drive chain tension adjustment
drive chain tension gap