the telescopic actuator converts a rotation of a rotating shaft of a motor into {HEAD ~ expansion and contraction movements} of {TAIL ~ an output rod} via the planetary reduction gear and the screw feed mechanism 
of
the telescopic actuator converts a rotation of a rotating shaft of a motor into { HEAD ~ expansion and contraction movements } of { TAIL ~ an output rod } via the planetary reduction gear and the screw feed mechanism
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH