actuator means associated with the member, for applying stress to the member in such a manner as to produce {HEAD ~ a strain} opposite in {TAIL ~ sense} to that induced by the external stress forces acting on the structure 
actuator means associated with the member , for applying stress to the member in such a manner as to produce { HEAD ~ a strain } opposite in { TAIL ~ sense } to that induced by the external stress forces acting on the structure
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH