The potassium causes cessation of electrical and mechanical cardiac activity by blocking the initial phase of myocardial depolarization.
钾通过阻断心肌除极的起始相，导致电机械活动的停止。
Charging speed will be improved through depolarization by first-phase intense current charging and reverse discharging method.
通过一阶段大电流充电和反向放电去极化，有效提高了充电速度。
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