microplethysmography

例句：

1. 1. This technique is used to measure blood flow in the body.
   这种方法用于测量身体中的血流。
2. 2. Microplethysmography is a non-invasive method for monitoring heart rate and blood pressure.
   微量脉动描记术是一种非侵入性的监测心率和血压的方法。
3. 3. The study used microplethysmography to investigate the effects of exercise on heart function.
   该研究使用微量脉动描记术来探究运动对心脏功能的影响。