真空封装是气密封装的应用之一。
Vacuum package is an application of hermetic package.
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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。
Reasons of leakage were analysis, and application of dry gas seal was introduced particularly.
从理论上对干气密封的机理及影响参数进行了研究。
Mechanism about gas seal and main parameter were studied.
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