A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.
论述
调库
密性
确定方法,
密材料
选择及
密层
做法,介

正压法检测
调库
密性

操作过程,并给出
国内外
不同
密性标准。

A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.
论述
调库
密性
确定方法,
密材料
选择及
密层
做法,介

正压法检测
调库
密性

操作过程,并给出
国内外
不同
密性标准。
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