{TAIL ~ The particle separator} includes a generally conical inclined leading surface leading to {HEAD ~ a maximum radius} 
{ TAIL ~ The particle separator } includes a generally conical inclined leading surface leading to { HEAD ~ a maximum radius }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD