The survey of its needs, development and some gas analysis methods were given. Some techniques that may be used in passive leak detection for space vehicle were shown.
并对航天器被动检漏的要求、国内外状况以及各种气氛分析方法进行了系统地分析，指出了航天器被动检漏可采用的技术；
The survey of its needs, development and some gas analysis methods were given. Some techniques that may be used in passive leak detection for space vehicle were shown.
并对航天器被动检漏的要求、国内外状况以及各种气氛分析方法进行了系统地分析，指出了航天器被动检漏可采用的技术；
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