With the linear motor as the micro-feed servo mechanism, the numerical control machine can solve non-circular machining problem.
数控机床采用直线电机作为刀具的伺服进给机构，可以解决非圆零件的加工问题。
This system could precisely machine elliptic parts with high speed by the micro-reciprocating feed motion of linear motor and the high speed performance of electrical spindle.
结合直线电机的微量往复进给运动和电主轴的高速性能，实现了对椭圆零件的高速精密加工。
A new type of pneumatic micro-displacement actuator is introduced so as to the micro feed control for precision machine tools.
为便于精密机床的微进给控制，研究了一种新型的气压式微位移驱动器。
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