mining switchgroup矿用组合开关
control switchgroup控制组合开关;控制给合开关
manual switchgroup手动组合开关
resistance switchgroup切断电阻组合开关;[电] 电阻切换组合开关
braking switchgroup制动组合开关
transition switchgroup过渡组合开关
Switchgroup for m机组组合开关标准
field weakening switchgroup[电] 磁场削弱组合开关
Switchgroup for machine tools机床组合开关