Using field emission cathode, X ray source can be made with several advantages: smaller volume and brighter, high frequency response, in-time turning on, etc.
采用场发射阴极的X射线光源具有体积小，辐射强度高，频率响应快，可以随时开启，无需预热的优点。
A method of time field analysis in continuous system is adopted to study the output characteristic and the frequency response of switch type capacitor filter.
为了研究开关式电容滤波器的输出特性和频率响应，采用了连续系统时域分析方法，建立了滤波器的输出特性模型和频率响应模型，并进行了仿真。
In this paper a method base on the near-field theory of acoustics is used to measure the frequency response of the low-frequency loudspeaker through the engineering and technology practice.
本文是应用声学原理中的近场理论，通过工程技术实践探讨测量低频扬声器频响的一种方法。
In this paper a method base on the near-field theory of acoustics is used to measure the frequency response of the low-frequency loudspeaker through the engineering and technology practice.
本文是应用声学原理中的近场理论，通过工程技术实践探讨测量低频扬声器频响的一种方法。
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