{HEAD ~ The mechanical connector} of the present invention also provides {TAIL ~ effective means} for ensuring that the components will not become inadvertently separated when the combined instrument is held by only one component 
provides
{ HEAD ~ The mechanical connector } of the present invention also provides { TAIL ~ effective means } for ensuring that the components will not become inadvertently separated when the combined instrument is held by only one component
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH 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