The shroud is attached to a head plate, and is designed to both enclose {HEAD ~ the solid particles} suspended as {TAIL ~ a result} of the removal operation, and to direct the suspended material to the mouth of the suction pipe 
The shroud is attached to a head plate , and is designed to both enclose { HEAD ~ the solid particles } suspended as { TAIL ~ a result } of the removal operation , and to direct the suspended material to the mouth of the suction pipe
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD 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