扭矩分配器润滑
torque divider lubrication
扭矩分配器行星齿轮
torque divider planetary gear
扭矩分配器移动调节器
torque divider shift governor
YBF系列风机电机
series YBF Ex motor for fan
YBJ电机机座地脚
frame foots of YBJ series motors
半微分电分析
semidifferential electroanalysis
变电配电
power transforming and distribution