比值: specific value; ratio控制: control; dominate; regulate; ...比值控制器: ratio controller,比值控制系统: ratio control system关系调节 比例调节 比率控制 比值控制: ratiocontrolph值控制: ph control边值控制: boundary value control变值控制: variable valve control; variable-value control常数值控制: constant value control定值控制: constant value conrol; constant value control; fixed command control; fixed set point control; stabilization control峰值控制: peak control幅值控制: amplitude control固定值控制: fixed value control恒定值控制: constant value control极值控制: extremum control; pick holding control价值控制: value control均值控制图: mean chart设定值控制: fixed set point control; set point control数值控制: control, numerical; nc; numerical control数值控制带: tape numerical-control现时值控制: present value control现值控制: present value control预期值控制: predictor control; preview control终值控制: terminal value control阈值控制: threshold control