Means for sensing an abnormal condition of the machine tool is provided in {TAIL ~ the vicinity} of {HEAD ~ an essential portion} of the machine tool 
Means for sensing an abnormal condition of the machine tool is provided in { TAIL ~ the vicinity } of { HEAD ~ an essential portion } of the machine tool
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH