同义词
1)planetary gear final transmission,行星式最终传动2)planetary final drive group,行星式最终传动组件3)planetary final drive,行星最终传动4)planetary final drive sun gear,行星式最终传动中心齿轮5)final drive planet carrier,最终传动行星齿轮架6)excavator final drive planetary carrier assembly,挖掘机最终传动行星架总成
