“unipolar pulse width modulation”的概念、定义、翻译、参考文献-科学参考

单词	unipolar pulse width modulation
释义	unipolar pulse width modulation 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	water hyacinth waterhyacinth water hyacinth family water hygiene water ice water-immersion system water immersion wire water impact test water-induced landslide water information basic platform watering hole attack water-injected meat inspection water-injection distributing station water injection index curve water injection profile water injection station water injection test water injection variable frequency speed regulation technology water-ink cartoon water-ink painting water in oil emulsion water-in-oil emulsion drilling fluid water inrush water inrush coefficient method water inrush in karst tunnel

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。