abdominal aorta block的用法和样例：
- Objective To study the effect on abdominal aorta by application of block installation.
- The abdominal aorta is normally smaller than the thoracic aorta.
- Method: The SD rat model with HF was produced by constricting abdominal aorta.
- Methods To establish the rat model with constriction of the abdominal aorta.
- The abdominal aorta is normally smaller than the thoracic aorta, and rupture of the abdominal aorta usually occurs at smaller sizes than in the thorax.