{HEAD ~ A stabilizer} for properly orienting {TAIL ~ the coring unit} with respect to a pipe being cored may also be provided 
for properly orienting
{ HEAD ~ A stabilizer } for properly orienting { TAIL ~ the coring unit } with respect to a pipe being cored may also be provided
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH