阿兰直动机构
allan straight link motion
差动直流测试
differential DC measurement
柴油机驱动直流弧焊机
diesel engine driven DC arc welding machine
传动直丝弓技术
transmission adjustable appliance
垂直举升流动动态
vertical-lift performance
低频正弦脉动直流电压
low-frequency sinusoidal pulsate DC voltage
动平衡机拖动直流电动机
AC motor for dynamic balancing machine
对心直动从动件
radial (or in-line) translating follower
对心直动滚子推杆盘形凸轮机构
disc cam with pushing bar of roller of linear moti