In addition, the caked grain can be crushed and discharged through the guide hole by gravity flow without {HEAD ~ the necessity} for {TAIL ~ an operator} to enter the silo 
for
In addition , the caked grain can be crushed and discharged through the guide hole by gravity flow without { HEAD ~ the necessity } for { TAIL ~ an operator } to enter the silo
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 TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH