例句與用法

1. Resets the world transform of the form to an identity 2x2 identity matrix plus a zero - vector translation and fills a rectangle with a solid red brush
   將窗體的世界變換重置為一個單位矩陣（ 2x2單位矩陣加上零向量平移） ，并用純紅色畫筆填充一個矩形。
2. Variable frequency speed regulation system based on the voltage space - vector is researched in this paper , the principle of the voltage space - vector is presented , and the third part " s software strategy of voltage space - vector is analyzed , the method of the third part " s software of voltage space - vector is imitated with simulink . at the same time , the duty time and duty order of the two zero - vector are analyzed and showed that the voltage space - vector pwm is actually a modulated method by adding the harmonic to the sine wave
   本文對基于空間電壓矢量的變頻調速系統進行了研究，敘述了空間電壓矢量的原理，對ti公司第三方軟件的對稱空間電壓矢量的算法進行了分析，并用simulink對該方法進行了仿真，對兩個零矢量的作用時間和作用順序進行了分析，指出空間電壓矢量pwm實質上是一種諧波注入的調制方法。