总传动减速比
total reduction gear ratio
差动传动比
differential driven ratio
齿轮式传动总成输出轴
gear head drive assembly output shaft
定向运动总动量
directional movement momentum
动力传动总成
power transmission assembly
闭式差动传动机构
closed pattern of transmission mechanism
变传动比
variable transmission ratio
变传动比转向器
Steering Gear with Variable Ratio
差动传动
differential transmission
差动传动式转速表
differential drive tachometer