{TAIL ~ An encoder} with a light emitted editing {HEAD ~ wheel comprises} an editing wheel defines a wheel body and a hole in its middle portion 
{ TAIL ~ An encoder } with a light emitted editing { HEAD ~ wheel comprises } an editing wheel defines a wheel body and a hole in its middle portion
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH