The device further comprises {HEAD ~ means} of filling {TAIL ~ the enclosure} with an explosive gaseous mixture, firing means designed to set off the explosion of the said mixture and a remote communication system 
of filling
The device further comprises { HEAD ~ means } of filling { TAIL ~ the enclosure } with an explosive gaseous mixture , firing means designed to set off the explosion of the said mixture and a remote communication system
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL 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