coefficient of travel speed variation
Travel Speed
行程车速
移动速度
行程速度
行驶速
行驶速度
行走速度
旅行速度
轮胎式运梁车
行进速度
速度目标值
AC Adjustable Speed System
AC DC AC current source variable speed system by using converter
ac regulating speed system
antiskid differential speed system
DC variable speed system
variable frequency variable speed system
positive list system system
7-year system switching to 8-year system