Speed Control of Induction Motor Based on Passivity Theory P. 基于無(wú)源性理論的異步電機的轉速控制。
The externality theory is a basic theory of explaining economy activities and forest ecological environment problems. 摘要本外部性理論是解釋經(jīng)濟活動(dòng)與森林生態(tài)環(huán)境問(wèn)題的基礎理論。