When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated ().
A.clockwise,duetothebowlrotatingclockwise B.clockwise,duetothebowlrotatingcounterclockwise C.counterclockwise,duetothebowlrotatingclockwise D.counterclockwise,duetothebowlrotatingcounterclockwise