“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	severe restriction severe wind-eroded land Severi Severi divisor Severi group Severi invariant Severi number severity severity-based response to public emergency severity evalution of MDS severity of sampling severity of the consequences of the accident Severnaya Zemlya Severn River Severo Ochoa Severo-Zapadnyy Federal’nyy Okrug severs drought during 1928～1929 severs drought in Chongzhen period of Ming Dynasty severs drought in Wanli period of Ming Dynasty Sevilla Seville sevoflurane SEW sewage sewage and waste water sampling

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。