The coring unit includes {HEAD ~ a frame} containing the components of {TAIL ~ the unit}, which include a coring bit, a coring bit motor, a traverse mechanism, and a stabilizer for allowing ready orientation of the coring unit with respect to an object being cored 
The coring unit includes { HEAD ~ a frame } containing the components of { TAIL ~ the unit } , which include a coring bit , a coring bit motor , a traverse mechanism , and a stabilizer for allowing ready orientation of the coring unit with respect to an object being cored
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH