plethysmography

例句：

1. 1.Plethysmography is a technique used to measure blood flow in the body.
   脉搏描记术是一种用来测量身体血流的技术。
2. 2.During the test, the patient's heart rate and blood pressure were monitored using plethysmography.
   在测试期间，患者通过脉搏描记术监测了心率和血压。
3. 3. The study found that plethysmography could help doctors diagnose conditions such as hypertension.
   研究发现，脉搏描记术可以帮助医生诊断高血压等疾病。