CKD7F型机车转向架
bogie for CKD 7F locomotive
摆动式货车转向架
tilting type freight car bogie
swing type freight car bogie
高速货车转向架
high speed freight car bogie
客货车转向架
passenger and freight car bogie
快速货车转向架
rapid speed freight car bogie
前车架转向油缸小孔开裂
front frame steer cylinder aperture crack
特种高速货车转向架
special high speed freight car bogie
车辆转向架检修
inspection and repair of vehicle bogie