In addition, an operating unit is provided with second shafts, and {TAIL ~ the rotating unit} is also connected to the second shafts in {HEAD ~ a rotatable manner} 
In addition , an operating unit is provided with second shafts , and { TAIL ~ the rotating unit } is also connected to the second shafts in { HEAD ~ a rotatable manner }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD