external diaphragm

例句：

1. 1. The function of the external diaphragm is to separate the lungs from the chest cavity.
   外隔膜的功能是将肺与胸腔分开。
2. 2.Diagnosing a heart condition often involves testing the external diaphragm for signs of weakness or damage.
   诊断心脏病通常需要检查外隔膜是否有虚弱或损伤的迹象。
3. 3. During surgery, the surgeon must carefully lift the external diaphragm to access the patient's organs.
   在手术中，外科医生必须小心地抬起外隔膜以接触患者的器官。