pneumograph

例句：

1. 1.The doctor used a pneumograph to monitor the patient's breathing.
   医生使用肺描记器来监测病人的呼吸。
2. 2. The scientist developed a new pneumograph that could detect early signs of lung disease.
   科学家开发了一种新型肺描记器，可以检测到早期肺部疾病的信号。
3. 3. During the experiment, the pneumograph recorded the changes in the patient's lung capacity.
   实验期间，肺描记器记录了患者肺部容量的变化。