pulse electromagnetic energy apparatus

例句：

1. 1. He felt his pulse quicken ashe walked up the hill.
   他走上山时，感觉到脉搏加快了。
2. 2. Thedoctor checked her pulse to make sure shewas okay.
   医生检查了她的脉搏，以确保她没事。
3. 3. Her heart raced as shewaited for the results of the test.
   她在等待测试结果时心跳加速。