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