最终传动行星齿轮架
final drive planet carrier
final drive planetary carrier
履带式装载机最终传动室
track-type loader final drive compartment
拖拉机最终传动可靠性
reliability of tractor’s final transmission
差动行星传动
differential planet transmission
倒档行星架总成
reverse planetary carrier assembly
单斗电动挖掘机
Single-bucket electric shovel
液压挖掘机动臂
Boom of a hydraulic excavator