{HEAD ~ The plane} of the stirrer blades 15 is inclined at {TAIL ~ an angle} of inclination alpha to the rotation axle 
is inclined at
{ HEAD ~ The plane } of the stirrer blades 15 is inclined at { TAIL ~ an angle } of inclination alpha to the rotation axle
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH