... complex basic construction, therefore the investment in plant and ground is small and easy to keep clean. Hydraulic Servo Motion ... are pitch,roll, yaw, vertical movement, back and forward translation, left and right translation and the complex posture of the six postures. The goal ... motion pitch, roll, yaw, vertical movement, back and forward translation, left and right translation, L(i)(I=1,2,3,4,5,6 ...