改变了行程 Change the itinerary ; Changes in the itinerary

行程变化 change of stroke

可变行程油缸 adjustable stroke cylinder

进行变更的流程 Process for making changes

可变行程液压缸 adjustable stroke cylinder

行程速度变化系数 [机] coefficient of travel speed variation

大行程变形镜 large stroke DM

可变行程发动机 variable stroke engine