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