A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.
论述了
调库密
的确定方法,密材料的选择及密层的做法,
绍了用正压法检测调库密的具体操作过程,并给出了国内外的不同密
。
词条纠错
X
airtightness
生词本：
添加笔记：
密
;密封度;密封;不
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air-taxi, airtel, air-terminal, airtight, air-tight, airtightness, air-tightness, airtime, air-to-air, air-to-ground,
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