pulse top clipper circuit

例句：

1. 1. He felt a sudden surge of energyas his pulse quickened.
   他的脉搏突然加快，感到一阵能量激增。
2. 2. The doctorchecked her pulse to make sure she wasstill alive.
   医生检查了她的脉搏，以确保她还活着。
3. 3. Her heart raced as shewaited for the results of her blood test.
   她等待血液检测结果时心跳加速。