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high fidelity audio amplifier 高保真音频放大器
Minimum performance requirements for high fidelity audio amplifiers 高保真声频放大器最低性能要求
High Fidelity Audio Power Amplifier Based on Current Mode Technology 基于电流模技术的高保真声频放大器
Application on High Frequency Switch Power Supply in High Fidelity Audio Frequency Power Amplifier 高频开关电源在高保真音频功放中的应用研究
Minimum performance requirements on high fidelity audio combination equipment 高保真声频组合设备最低性能要求
High fidelity audio equipment and systems; Minimum performance requirements. Part 10: Headphones 高保真音响设备和系统。最低性能要求。第10部分:头戴式耳机
High fidelity audio equipment and systems; Minimum performance requirements. Part 1: General 高保真音响设备和系统。最低性能要求。第1部分:总则
High fidelity audio equipment and systems; Minimum performance requirements. Part 5: Microphones 高保真音响设备和系统。最低性能要求。第5部分:传声器
High fidelity audio equipment and systems; Minimum performance requirements. Part 7: Loudspeakers 高保真音响设备和系统。最低性能要求。第7部分:扬声器
High fidelity audio equipment and systems; Minimum performance requirements. Part 8: Combination equipment 高保真音响设备和系统。最低性能要求。第8部分:组合设备
Purpose: Low noise audio amplifier applications. 用途:用于低噪声音频放大。
1.Audio Frequency.The range of frequencies which theoretically are audible to the human ear;i.e., 30 Hz - 20 KHz.Truly high fidelity audio covers the entire range. 音频，理论上是人耳能够听得见的频率范围，即：30Hz-20KHz，是覆盖整个频率范围的真正的高保真音频。
High fidelity virbroseis seismic data acquisition. 可控震源高保真地震数据采集方法。
We are specialized in Researching， Developing and Producing hi-quality， high fidelity speakers and audio systems. 公司致力于研发、产和销售高质量，高保真的电声元件及音响系统。
At that time, there still is equipment of high fidelity sound on Newyork city face, acoustics has a fever friend relies on him device amplifier and loudhailer only. 当时,纽约市面上还没有高保真音响器材,音响发烧友惟有靠自己装置放大器和扬声器。
Designed for high grade audio equipment, giving priority to high fidelity sound quality. 专为音响设备设计,使音质更精确。
High Fidelity (or: How does the Fidelius Charm work? 高度忠诚（或：赤胆忠心咒如何起作用?）
This invention relates to methods for audio signal amplification and to audio amplifier circuitry and power supplies therefore. 本发明介绍的是音频信号放大的方法、音频放大电路及其电源。
The audio frequency must have the spdif connection, like this may output the high fidelity directly through the optical fiber the Dubi sound. 音频要有spdif接口，这样就可以直接通过光纤输出高保真的杜比声音。
Around 1918 Frank B.McIntosh developed a new type of audio amplifier that incorporated a unity-coupled, bifilarwound output transformer. 1918年，麦氏开发了一款新的音频放大器，在其中采用了一款单一耦合，双线并绕的输出变压器。