摇臂杠杆 rocker arm lever

摇臂杠杆衬套 rocker lever bushing

摇炉杠 [铁路] grate shaker lever

摇臂控制杠杆 rocker arm control lever

摇摆式杠杆 swinging lever

摇炉杠座 [铁路] Grate lever fulcrum

摇炉杠轴 [铁路] Grate lever shaft

摇动杠杆 rocking lever