SF：总频率
在学术研究，特别是电子科学等相关领域中，“Summed Frequency”常被缩写为“SF”，以方便快速书写和高效使用。其对应的中文译名为“总频率”，用于表示多个频率成分相加后的总合。这一术语在信号处理、频谱分析等场景下应用广泛。
Summed Frequency的英文发音
例句
- It will be improved network quality through the automatic frequency planning project. At the same time it summed up the sweep-based automatic frequency planning process, the amount time of each sector, the key point of every sectors.
- 通过本次自动频率规划项目，可提升网络质量，同时总结出基于扫频自动频率规划的流程，各环节所需的时间量，各个环节需把握的关键点。
- Regular characters summed up from transformer winding deformation test by using frequency response analysis method are described.
- 介绍了用频率响应分析法现场测量变压器绕组变形中总结出带有规律性的特点。
- Discussion : Through the ancient and the collation and analysis of relevant literature research, summed eight confluence points of common disorders attending law attending high frequency corresponding with points of law applied.
- 讨论：通过对相关文献以及古籍的整理及分析研究，总结出现代医家应用八脉交会穴的常用主治病症规律及所对应的高频配穴的应用规律。
- Summed up the difficult Western diseases, their treatment of the six changes every five years, the volume of documentation, keyword frequency changes every five years.
- 总结了中西医各自治疗六大疑难疾病的每五年文献量的变化情况，每五年高频主题词的变化情况。
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