作用－角度－角度－角度变换
action-angle-angle transformation
变刚度牵引拉杆
traction rod with variable stiffness
对数幅度角度图
log-magnitude-angle diagram
高精度角度伺服系统
a high precision angle servo system
AT供电牵引网
AT feeding system for electric traction
AT牵引供电方式
AT traction power supply mode
AT牵引网
AT traction power network
AT net
AT traction network
DC1500V牵引供电系统
DC 1 500 V traction power supply system