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- audio frequency waveband 声频频带
- I am majored in audio frequency amplifier. 我主修音频放大器。
- The middle part of an audio frequency. 中声频，中频声波频率的中间部分
- Purpose: Audio frequency power amplifier applications. 用途:用于音频功率放大。
- Scene supervisory system and audio frequency retransmission system; e. 现场监控系统及视音频转播系统;
- Purpose: Audio frequency general purpose ,driver stage amplifier applications. 用途:用于音频放大,激励级放大。
- Can control audio frequency signals remotely，the volume can be modulated. 可对各路音频信号进行远程操控，音量可调；
- An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment. 啸声干扰一种由于诸如闪电等大气干扰而产生的音频电磁波，具有典型的逐渐减弱频率的特征，该频减引起了检波设备中调逐渐下降的啸声
- The main hardware of multi-media computer is composed of CD-ROM, video frequency, audio frequency. 多媒体计算机的主要硬件包括：CD－ROM（光盘驱动器）、视频卡和音频卡。
- The audio frequency alternately service system(VOD), and indoors viewability bill inquiry service. 视音频交互服务系统（VOD），提供客房内可视性帐单查询服务；
- Also there is no "Ghosting" or reflective signals that occur as there is no audio frequency being transmitted. 观察这一次的锁定方向，两个方向的交叉点就是目标物的埋藏位置。
- This paper introduces the principle and tested results of measuring nodulizing grade by audio frequency method. 介绍了音频法检测铸件球化级别的原理及试验结果。
- Through the music switcher, music play mode and audio frequency mode can be chosen, which have a very good effect. 通过音乐开关可选择音乐播放、音频方式治疗，有很好的治疗效果。
- Including tabulates the window, the audio frequency characteristic adjustment function, imitates winamp. 详细说明：完整的MP3播放器源码。包括列表窗口，音频特性调整功能，仿照winamp。支持换肤。
- Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop( PLL) technique and a singe chip microcomputer. 利用锁相环(LL)窄带跟踪特性;与单片机结合;实现自动闭塞系统移频信号解调.
- A new method for power measurement of audio frequencies is introduced. 介绍了一种音频范围内功率测量的新方法。
- It solves the problem that the dynamic range of SPL is large within audio frequency range by adopting logarithm compress and A/D converting circuit. 该系统采用对数压缩电路和A/D转换电路相结合的方法，解决了SPL值在音频域内的动态范围很大的问题。
- The paper presents the research and application of d ealing with figure files,audio frequency files and video files in information management system. 介绍在信息管理系统开发过程中处理图形文件、音频文件和视频文件的方法及应用。
- It is difficult to obtain the dynamic models of converters, overlong overhead HVDC lines and passive filters in audio frequency. 然而，由于运行工况及气候的影响，难以求取换流器及长距离高压架空线路在音频带内的动态数学模型。
- The machine built-in multimedia player may broadcast the mainstream form the audio frequency document, the acoustic fidelity displays satisfyingly. 机器内置的多媒体播放器可以播放主流格式的音频文件，音质表现让人满意。
