它控制主轴马达转动和磁头运动。

It controls spindle motor rotation and heads movements.

youdao

现今光盘驱动器主轴马达的最高转速约为每分钟12000转。

The fastest rotated speed of principal axis motor of optical disc driver has reached about 12000rpm nowadays.

youdao

弹筒式直结主轴：主轴与主轴马达为减少传动连结所产生的误差与震动，采用一体式直接设计，并采用高精密abect。

Barrel type straight spindle: spindle and spindle motor to reduce the transmission link error and vibration, the use of integrated direct design, and the use of high precision ABECT.

youdao