In the next installment of this series, I’ll consider the third theory that Koskela and Howell’s paper characterized as obsolete, Thermostatic Control.
在本系列的下一部分，我将思考Koskela和Howell论文认为过时的第三个理论，“恒定控制”。
2
The key elements are discussed on the basis of theory of thermostatic valve, such as inductive temperature wrap, dissepiment and spring, the function of spring is explained.