requisite variety meaning in English
必要变化
Examples
- 5 ) the variety , a famous concept proposed by the precursor of cybernetics , ashby , is extended from variable to systems . with the definition of system variety , the gotten conclusions lead to two new laws of variety in control systems : " the general conservation law of variety " for regulation systems , and " the law of requisite variety " based on the proposed basic information condition for tracking systems
5 )将ashby提出的变异度的概念由信号推广到系统，给出了系统的变异度定义，进一步阐述了控制系统的变异度定律:针对调节系统，提出了“广义变异度守恒定律” ，对前人的结论进行了修正;针对跟踪系统，提出了基于基本信息条件的“变异度必备定律” 。