例句與造句

1. it is showed that the loop space functor and the suspension functor preserve the properties of homotopy regular . and a series of homotopy equivalence spaces are constructed
   摘要證明了閉路函子和同緯函子保持同倫正則性，同時構(gòu)造出了一系列同倫等價的空間。
2. this paper expatiated that the mathematics models of ac motor is higher order, non-linear and closed coupling, multivariable input-output system . and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened-loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ) . finally, realized the control strategies of variable-frequency speed regulating using assembly and c language
   文中闡述了交流異步電機的數(shù)學模型是高階、非線性、強耦合的多變量輸入輸出系統(tǒng),介紹了交流電機的正弦脈寬調(diào)制、開環(huán)電壓空間矢量的u/f控制和磁場定向控制的原理及控制算法,并利用dsp構(gòu)成控制系統(tǒng),通過匯編語言和16位定點c語言混合編程的方法實現(xiàn)了上述的變頻調(diào)速控制策略。
3. It's difficult to find loop space in a sentence. 用loop space造句挺難的