relaxation testing machine

例句：

1. 1. The machine is used to measure the relaxation of muscles during sleep.
   这台机器用于测量睡眠期间肌肉的松弛程度。
2. 2. The doctor uses this machine to check the patient's heart rate and blood pressure.
   医生使用这台机器来检查患者的心率和血压。
3. 3. The relaxation testing machine is an important tool for assessing the effectiveness of relaxation techniques.
   放松测试机器是评估放松技巧有效性的重要工具。