英语词汇primary return air怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	primary return air
释义	primary return air proletarianizationn. 无产阶级化 predeterminationn. 预先决定；原有意图
随便看	supplyable supply active fertilizer supply actor supply a deficiency supply a demand supply advaces supply advances supply against coupon supply a gap supply agent Supply agreement supply air supply air duct supply air line supply air pipe supply air rate supply air reservoir supply air system supply air temperature difference supply air tube supply amount of fertilizer Supply and demand supply and demand on commodity supply and demend supply and demend equilibrium

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