For example, the fan 210 can rotate at {HEAD ~ a rate} of 7,700 rpm to move {TAIL ~ the flow} at a peak rate of 132 cubic feet per minute  
to move
For example , the fan 210 can rotate at { HEAD ~ a rate } of 7,700 rpm to move { TAIL ~ the flow } at a peak rate of 132 cubic feet per minute
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH