This makes it possible to suppress {HEAD ~ vibration problems} caused by {TAIL ~ vibration} close to the source 
caused by
This makes it possible to suppress { HEAD ~ vibration problems } caused by { TAIL ~ vibration } close to the source
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH