1)  blow-back
启闭压差
2)  start-stop
启闭
1.
The application of the command formula in CAXA on analyzing the principle of the triple eccentric butterfly valve start-stop;
利用电子图板的公式曲线功能分析三偏心蝶阀启闭性能
2.
By use and study on valves in the real construction the model choice, fabrication, installation, performance examination, start-stop work and running management of the valves are studied.
通过实际施工中阀门的使用和调研,对阀门的选型、制造、组装、性能测试、启闭作业、运行管理进行了探讨,提出了相关的建议,以保证阀门在供水管网中更好地发挥作用。
3)  sealing coefficient
启闭系数
4)  quick open shut
快速启闭
1.
In this paper,the authors presented the design idea and method of a quick open shut mechanism,analyzed the motional and dynamic relation on which the mechanism is designed and manufactured.
介绍了一种快速启闭机械装置的设计思想和设计方法 ,详尽分析了该机械装置赖以设计制造的运动和动力关系。
5)  circulating close-open
循环启闭
1.
The article introduces the parts and working principles of circulating close-open automatic sprinkler system and discusses the practicability of the system replacing Halon system.
介绍了循环启闭自动喷水灭火系统的组成、工作原理 ,探讨了该系统替代哈龙灭火系统的可行性 ,进行了系统在模拟典型场所的应用性试验研
6)  open-close system
启闭系统
参考词条
补充资料：泵额定压差
分子式：
CAS号：

性质：在泵额定工况下，其额定排出压与额定吸入压力之差。额定压差是泵性能的主要考核指标之一。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。