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1)  frequency selection
选频
1.
This paper is involved in the analysis of oscillation starting condition, output voltage amplitude adjustment, and frequency selection network composition of sinu soidal coave oscillation circuit.
分析了用运算放大器组成正弦波振荡电路的起振条件和输出电压幅值的调节及选频网络的构成。
2)  variable frequency and frequency modulation technique
变频选频法
1.
The variable frequency and frequency modulation technique was applied in the general investigation and examination of fuel gas pipelines.
采用变频选频法技术 ,对大连某区燃气管线实施全面的普查和检测 ,测得的管道绝缘电阻值在14 5 0~ 10 0 0 0Ω·m2 之间。
3)  frequency selection
频率选择
1.
Analysis on frequency selection of HF communication among the formation
编队内部短波通信频率选择分析
2.
By using the special reconstruction principle and the superiority in decreasing sampling frequency,the application of periodically nonuniform sampling in frequency selection is also presented.
介绍了用滤波器组重构多阶采样信号的原理 ,并且利用多阶采样特殊的重构原理以及在降低采样率上的优势 ,介绍了多阶采样在频率选择上的应用。
4)  isolating-vibration
选频隔振
5)  frequency selection
频率选取
6)  frequency electing and passing
频率选通
补充资料:频访卢秀才(卢时在选末)
【诗文】:
药诀棋经思致论,柳腰莲脸本忘情。
频频强入风流坐,酒肆应疑阮步兵。



【注释】:



【出处】:
全唐诗:卷682-73
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