瓣环 meaning in English

cingulum

Drop tight seating is accomplished over the full pressure range because a slight clearance at the pivot pin assures complete seating between the disc ring and body ring
由于在枢轴销上的空隙很小，所以在整个压力范围内都可以实现漏斗形紧密阀座密封，确保阀瓣环和阀体环之间的阀座密封的完整性。
In order to further optimize structure of the valve , the design need engineering analysis , and need feedback information of performance parameter in experiment to modify design . because of limited time , this paper establishes stress distribution and deform only by fea , and optimizes the structure of valve . it can ensure the valve meet the requirement of fact usage and assembly , and found good base for further research and experiment on body or out - of body and manufacture on large scale
为了进一步对瓣环和瓣叶作结构优化，设计还需要进行工程分析，还需要将实验获取的性能参数信息反馈回来，修改设计，由于时间关系本论文仅用有限元分析确定人工心瓣在工作及装配时的应力分布和变形情况，对瓣环和瓣叶的结构进行优化，以确保设计出来的人工心瓣满足实际使用和装配要求，为人工心瓣的进一步研究、进行离体和在体实验及批量生产奠定良好的基础。