The upwardly directed wind, generated at the blade approaching {TAIL ~ portion} 51 as described above, raises uncut grasses at the blade approaching {HEAD ~ portion} 51 
The upwardly directed wind , generated at the blade approaching { TAIL ~ portion } 51 as described above , raises uncut grasses at the blade approaching { HEAD ~ portion } 51
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH