electrical signal

• 电信号

electrical signal的用法和样例：

例句

1. The scanner emits a low-frequency radio signal, activating the microchip.
   扫描仪会发出一些低周波的无线电信号，来激活微芯片。
2. A nerve cell, for example, rapidly transmits electrical signals in the body.
   例如，神经细胞在体内能迅速传递电信号。