例句與造句

1. based on the vector of point, the formula of moving envelope surface of the assembly part is given . according to determinant and vector theory, the method of working out the three-dimensional space arbitrary polyhedron volume is described
   基于三維矢量理論和行列式理論，解決了計算三角面片的任意多面體體積及評估零件所需的實際裝配空間等問題。
2. the main contents of the study as follows : ( 1 ) an introduction to the space vector theory and its application on the modeling of pmsm is presented firstly, which shows the basic idea of pmsm dtc . a comparison of dtc in asynchronous machine and pmsm is made as well . in order to take the full advantage of the dtc, the pmsm has to be properly selected
   本文的主要內(nèi)容包括：(1)由空間矢量模型推導(dǎo)出永磁同步電機(jī)的磁鏈、電壓和轉(zhuǎn)矩的公式，描述了永磁同步電機(jī)轉(zhuǎn)矩直接控制的基本控制機(jī)理，分析了永磁同步電機(jī)與感應(yīng)電機(jī)在轉(zhuǎn)矩直接控制方式上的不同之處以及轉(zhuǎn)矩直接控制對永磁同步電機(jī)的要求。
3. It's difficult to find vector theory in a sentence. 用vector theory造句挺難的