{HEAD ~ The speed} of the conveyer belt 10 should be reduced as much as possible but the load for its operation increases and it may become impossible to accurately control {TAIL ~ the speed} of the motor 21 
{ HEAD ~ The speed } of the conveyer belt 10 should be reduced as much as possible but the load for its operation increases and it may become impossible to accurately control { TAIL ~ the speed } of the motor 21
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH