{HEAD ~ The screw feed mechanism} 39, which converts the rotating movement of the thrust receiving flange 74 into a thrusting movement of the output rod 33, includes a male thread member 95 and {TAIL ~ a female thread member} 96 
includes
{ HEAD ~ The screw feed mechanism } 39 , which converts the rotating movement of the thrust receiving flange 74 into a thrusting movement of the output rod 33 , includes a male thread member 95 and { TAIL ~ a female thread member } 96
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