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1·Mechanism about gas seal and main parameter were studied.

从理论上对干气密封的机理及影响参数进行了研究。

2·The article for lubricating oil into dry gas seal reason is analyzed.

本文针对干气密封一次进油事故原因进行了分析。

3·In short: the occasion where the use of mechanical seals can be used dry gas seal.

总之：凡使用机械密封的场合均可采用干气密封。

4·Reasons of leakage were analysis, and application of dry gas seal was introduced particularly.

为了解决泄漏问题，分析了泄漏的原因，详细地介绍了干气密封的应用实例。

5·Valve can turn 90 degree working in testing course, especial suitable for property experiments of gas seal.

阀门在试验过程中可翻转90度工作，特别适用气密封性能试验。

6·Theoretically study the dry gas seal mechanism and main parameters effect the performance of the dry gas seal.

从理论上对干气密封的作用机理及影响干气密封性能的主要参数进行了研究。

7·As a seal test, sensitivity of helium leak test is higher than other test methods as gas seal and NH_3 leak test.

氦泄漏试验作为一种致密性试验，它的检漏灵敏度远远超过了气密性试验和氨渗漏等试验方法。

8·A new type of dry gas seal structure and working principle applied on high pressure ammonia pump were recommended.

介绍了一种新型高压氨泵采用干气密封的结构及工作原理。

9·A theory model considering the isotropy roughness and static stator angular misalignment of dry gas seal was given.

建立了考虑低速干气密封端面各向同性粗糙度和静环静态角偏差的理论模型。

10·The dry gas seal fundamentals and the technique characteristics of herringbone spiral groove dry gas seal were introduced.

对干气密封原理和人字形螺旋槽干气密封技术特点进行了介绍。