Yangzhou Kumaici Hydraulic Equipment Co., Ltd. is a professional manufacturer of electro-hydraulic actuators, electric actuators, and hydraulic alignment devices.

In the above analyses, the assumption of knowing the mathematical model of the system is inherent in 'v'. It is only after the mathematical model of the system is understood that one can analyze the system, enhance its performance, predict its movement, and ultimately implement control over it. In reality, the establishment of mathematical models for systems (including processes, equipment, etc.) is not only necessary in engineering technology but also in the natural sciences (astronomy, geography, physics, chemistry, etc.), social sciences (economics, demography, etc.), and even in the field of cognitive science.