如有必要，该地区可以通过添加额外的扩展中继器的单位，所有连接到同一个外置天线，使用信号分离器和线路放大器。
If necessary, the area can be extended by adding additional repeater units, all connected to the same external antenna, using a signal splitter and line amplifier.
这种变压器耦合线路前置放大器是最终的音频注意建材工程。
This transformer coupled line pre-amplifier is the ultimate in Audio Note DIY engineering.
这些线路电平输入相加之前发送到内部放大器允许在低音音响系统操作使用一个低音炮。
These line level inputs are summed before being sent to the internal amplifier allowing the subwoofer to operate in stereo systems using a single subwoofer.
仪器中设计了大电流低频交流恒流源，高灵敏度前置放大器，并用单片机软件代替了大量电子线路的功能。
We designed a large current AC constant current source of low frequency, and an electronic preamplifier with high sensitivity for the use of the instrument.
前置放大器电子线路或装置，用来探测并加强无线电接收机所发出的微弱信号，从而使其达到更加有力的增幅程度。
An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.
AMT公司的 失真效果器均采用内置式箱体模拟线路，前置放大器和内置式降噪线路。
All AMT pedals are designed to sound equally as good through an amp or direct recorded due to built-in cabinet emulation circuitry.
AMT公司的 失真效果器均采用内置式箱体模拟线路，前置放大器和内置式降噪线路。
All AMT pedals are designed to sound equally as good through an amp or direct recorded due to built-in cabinet emulation circuitry.
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