ventricular exciting stage

例句：

1. 1. The ventricular excitingstage is a critical period in the heart's function.
   心室兴奋期是心脏功能中一个关键的时期。
2. 2. During the ventricular exciting stage, the heart musclecontracts to pump blood.
   在心室兴奋期，心肌收缩以泵血。
3. 3. The ventricular exciting stage is essential for maintainingproper heart rhythm.
   心室兴奋期对于保持正常的心律至关重要。