电平信号

level signal的用法和样例：

例句

Also, their isolation is limited by the leakage currents of the semiconductor devices, and they have a high insertion loss for low level signals.此外，其隔离受半导体器件漏流的限制，并且对低电平信号具有较高的插入损耗。
When the pest crawls through the electro-optical sensor, it will produce a high level signals and begins to count the pulse signal, the count to the pest's number can be realized.当虫子通过光电传感器时，光电传感器输出高电平信号对脉冲信号进行计数，就实现了对虫子数量的统计。

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a BFD

ac-conductance technique