英语词汇“air casing”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	air casing
释义	air casing Engineering noun An air-filled casing surrounding a boiler, combustion chamber, etc., usually to reduce loss of heat to the surroundings or to facilitate heat transfer to the air inside it. Origin Mid 19th century; earliest use found in Robert Spencer Robinson (1809–1889), naval administrator.
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air casing