幅频特性曲线 meaning in English

amplitude-frequency curve

This paper analyzes the amplitude frequency characteristics of picture intermadite frequency amplify circuit of colour television , analyzes the influence of picture quality and sound quality for intermadiate frequency amplify circuit amplitude frequency characteristics , puts forward the method of reduce influence and improve picture and sound quality
摘要详细分析了彩电图像中放电路幅频特性曲线，分析中放幅频特性对图像质量、伴音质量的影响，提出了减少影响提高图像、伴音质量的方法。
The traditional analog frequency - sweeping instrument , which mostly uses the lc circuit as the frequency oscillator , is more expensive , too much bigger and heavy to carry . it can only display the curve of amplitude - frequency , but ca n ' t used to measure the phase - frequency , and ca n ' t used to print the curve of frequency response characteristic either . it brings many discommodity to the user
传统的模拟式扫频仪大多是用lc电路构成扫频振荡器,它不仅价格昂贵,体积庞大,而且只能显示幅频特性曲线,不能得到相频特性曲线,更不能打印被测网络的频响曲线,给使用者带来诸多不便。