However since VWV system is multivariable, stronglycoupled, nonlinear and time variant, its design performance and management are more difficult than constant flow chilled water volume system's.
但是变水量空调系统具有多变量、强耦合、非线性、时变的特点,其运行和管理相对于定水量系统难度大些。
2
This system is sophisticatedly nonlinear and stronglycoupled.
这是一个具有复杂非线性和强耦合的系统。
3
However, variable air volume system itself is stronglycoupled and nonlinear, the traditional PID controller is usually difficult to achieve satisfactory control effect.