A precision machining system for machining {TAIL ~ a workpiece} into a desired surface with {HEAD ~ two tool driving units} 
A precision machining system for machining { TAIL ~ a workpiece } into a desired surface with { HEAD ~ two tool driving units }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD