英语词汇“primary branch”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	primary branch
释义	primary branch primary branch primary branches, 1 1. A drain which slopes from the base of a soil stack or waste stack to its junction with a building drain. 2. In a building, the largest single branch of a water-supply line or an air-supply duct. AcronymsSeePB
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