Experiments and simulations show that the proposed system can operate in audio switch frequency range without audio noise from the motor load, meanwhile, EMI can be limited to low level.

实验与仿真结果表明：该系统采用音频开关而不导致电机负载的音频噪声，同时使EMI能被限制在低电平。

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In this case, there are a limited number of switch CARDS that can handle both the high voltage and the high current signals.

在这种情况下，则仅仅有限的开关卡既可以处理高压信号，又可以处理大电流信号。

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Through those local loops multiple users compete for limited core network resources on demand and as available, with each switch serving as a point of contention.

通过这些本地环路，多个用户按需竞争有限的核心网络资源。

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But I think any switch would be limited.

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