It is another object of the present invention to provide a method and {HEAD ~ apparatus} for {TAIL ~ the sequential monitoring} of the working state of a production line which can be widely used in a variety of manufacturing operations 
for
It is another object of the present invention to provide a method and { HEAD ~ apparatus } for { TAIL ~ the sequential monitoring } of the working state of a production line which can be widely used in a variety of manufacturing operations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH