在交流电路中，电流的幅度是连续不断地变化的，因此相位和时间的概念变得十分重要了。

In ac circuits, the current amplitude changes continuously that the concept of phase or time becomes very important.

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随着每个连续不断地发生的变化，波及的环境逐渐扩大，而改变的效果也愈加明显。

With each successive change, the local environment becomes slightly larger and the effects slightly more pronounced.

youdao

随着每个连续不断地发生的变化，波及的环境逐渐扩大，而改变的效果也愈加明显。

With each successive change, the local environment becomes slightly larger and the effects slightly more pronounced.

youdao