Conversely, as the ball screw is retracted, the biasing force of {TAIL ~ the biasing member} causes the table main body to swivel in a second direction opposite {HEAD ~ the first direction} 
Conversely , as the ball screw is retracted , the biasing force of { TAIL ~ the biasing member } causes the table main body to swivel in a second direction opposite { HEAD ~ the first direction }
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD