用联轴器找主轴中心
alignment of shafts by coupling
轴孔中心距
Distance of holes-centres
超高速主轴轴承
Ultra High-speed Spindle Bearings
超高转速主轴轴承
Ultra High-speed Spindle Bearings
初级警官人事中心主任
head junior officers’ personnel centre
电主轴轴承
high-speed spindle bearing
高级警官人事中心主任
head senior officers’ personnel centre
高速主轴轴承
High-spsed Spindle Bearing