如高保真声音信号 (high-fidelity audio)的频率范围为10Hz～ highaudio)的频率范围为10Hz～ 20000Hz，它的带宽约为20kHz， 20000Hz，它的带宽约为20kHz，而视频 信号的带...
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频率：Hz 高保真声音(high-fidelity audio): 10 ~ 20 000 Hz 声音(audio): 20~ 20 000Hz 话音(speech): 300~3000/3400 Hz 亚音/次音(subsonic):< 20 Hz 超声(ultrasonic): ...
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high fidelity audio track 高保真度音轨
high-fidelity audio equipment and system [电讯] 高保真音频设备及系统
High Fidelity Audio Codec 高保真多媒体数字音频编码器
High-fidelity audio resolution 高质音频区分率
Household high-fidelity audio equipment and systems. Methods of measuring and specifying the performance. Part 1: general.
家用高保真音响设备和系统。性能检测和说明的方法。第1部分：总则。
The outlook of high frequency switch power supply in application to high fidelity audio frequency power amplifier is indicated.
指出了高频开关电源在高保真音频功率放大器中广阔的应用前景。
High fidelity audio equipment and systems: Minimum performance requirements. Part 13: High fidelity systems for use in vehicles (for example, motor cars) : FM-radio tuner units.
高保真音响设备和系统。最低性能要求。第13部分：车辆用高保真装置：调频无线电调谐部件。
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