up-down stroke上下冲程
Up-down Stroke Velocity上下冲程速度
up-stroke hydraulic press上行液压压力机
up-stroke of piston活塞上升行程
hydraulic up-stroke press上压水压机;水力上行压机
up-down stroke of oil pump油泵的上
hydraulic c up-stroke press上压水压机
wake-up stroke醒后卒中;醒后脑卒中;卒中
catch-up stroke前交叉;一臂等待另一臂
N（名词） an upward stroke or movement, as of a pen or brush 向上的笔画
N（名词） the mark produced by such a stroke 上挑的笔迹