“单极性脉宽调制”的概念、定义、翻译、参考文献-科学参考

单词	单极性脉宽调制
释义	单极性脉宽调制 Encyclopedia 工学电力电子控制技术释 unipolar pulse width modulation单极性脉宽调制在调制信号的半个周期内，载波只在正极性或负极性一种极性范围内变化，所得到的脉宽调制（pulse-width modulation;PWM）波形也只在单个极性范围变化的控制方式。
随便看	collecting region Collecting Situation about Chinese Ancient Calligraphy and Painting collecting terms collecting tubule Collecting Works on Tea collection collection analysis collection census collection classification collection custody and collection department collection development collection development policy collection digitization collection efficiency collection evaluation collection features Collectiong of Cantonese Opera Star collection growth collection lens collection management collection management area collection manager collection of academy Collection of Ancient and Modern Ballads collection of ancient and modern calligraphers

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。