The circuit injects an ac signal on one wire of a cable and then looks for an absence of capacitive coupling to the other wires.
电路在电缆的一条线中输入交流信号，然后寻找其他线中电容耦合的缺少。
The products are mainly be used for computers, audio, video machines and so on, which includes signal cable, wire harness, power cord, LAN cable.
公司生产的产品主要应用于电脑音频视频电器等领域，包括信号线电子线电源线网路线等。
Of our own production of wire rod has 25 time, we have a telephone line a range of products and audio signal cable.
我们自己生产线材已经有25的时间了，我们有电话线一系列产品及音频信号连接线。
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