Both the heart muscle and the nervous system produce electrical impulses that can be measured with special machines.

心肌和神经系统均能产生电流脉冲，可以用特殊的仪器测量出来。

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Both the heart muscle and the nervous system produce electrical impulses that can be measured with special machines.

心肌和神经系统均能产生电流脉冲，可以用特殊的仪器测量出来。

youdao