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
库密
的确定方法,密材料的选择及密层的做法,介绍用正压法检测库密的具体操作过程,并给出国内外的不同密标准。
A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.
论述库密的确定方法,密材料的选择及密层的做法,介绍用正压法检测库密的具体操作过程,并给出国内外的不同密标准。
声明：以上例
、词
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