例句與造句

1. The performance of the electric vehicle is improved greatly in which the harmonic wave of output voltage , power loss and torque pulsation of the system are decreased by controlling the switch angles
   它運(yùn)用規(guī)則采樣法產(chǎn)生正弦脈寬調(diào)制波，通過開關(guān)角的控制抑制逆變器輸出電壓中的諧波分量，降低了電動機(jī)的損耗和轉(zhuǎn)矩脈動，使電動車的運(yùn)行性能得到了較大改善。
2. The main studying contents and achievements in this dissertation are presented as follows . based on the analysis of the selective harmonic elimination pwm mathematical model , an equivalent newton iteration solving method about the switching angles nonlinear transcendental equation set is presented . the algorithmic convergence time is enormously reduced and the algorithmic convergence ability is highly increased
   本文的主要研究內(nèi)容和成果如下：通過對單相特定消諧pwm數(shù)學(xué)模型的分析，提出了關(guān)于開關(guān)角非線性超越方程組的等效轉(zhuǎn)化牛頓迭代解法，極大地縮短了算法收斂時間，提高了算法的收斂性，為特定消諧pwm開關(guān)角的工程計算提供了新的方法。
3. It's difficult to find switch angle in a sentence. 用switch angle造句挺難的