Words to Describe servomechanism

How servomechanism often is described ("________ servomechanism")

• third
• venous
• feedback
• closed
• pneumatic
• useful
• off
• accommodative
• electronic
• single
• data
• joint
• simple
• automatic
• type
• proportional
• viscous
• electrohydraulic
• loop
• digital
• order
• damped
• conventional
• ordinary
• relay
• neurological
• particular
• tote
• idealized
• mechanical
• biological
• stable
• practical
• unstable
• basic
• uncompensated
• linear
• electrical
• oscillating
• controlled
• actual
• electromechanical
• typical
• control
• continuous
• nonlinear
• actuated
• complete
• elementary
• positional
• hydraulic
• human
• ideal
• complex
• amplifier
• electric