Through analysis to system principle and balance valve structure , a balance valve with by - pass was developed.

同时还使得平衡阀结构复杂,加工难度大 、 成品率低.

The system principle, structural characteristics and pivotal technology of multiport selector valve was introduced.

介绍了新型分配计量多通阀的系统原理 、 结构特点和关键技术.

This paper described the design mind and support technology and system principle of the control protection system of nuclear criticality safety experiment facility for nitride uranium solution.

主要阐述了铀溶液核临界安全实验装置控制保护系统的设计思想、保障技术和系统原理。