这些部件是在压力下硫化并形成压力套管，这是夹管阀的心脏部分。
These parts are vulcanized under pressure to form a pressure-containing sleeve that is the heart of a Pinch Valve.
目的采用套管连接血管技术制作大鼠颈部心脏移植的模型，减少手术并发症，提高术后存活率。
Objectives to develop a model of rat cervical heart transplantation by using a cuff technique to reduce operating complications and increase the postoperative survival rate.
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