ventilation duct spacer是什么意思，ventilation duct spacer的翻译，ventilation duct spacer音标、读音、用法和例句

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ventilation duct spacer是什么意思，ventilation duct spacer的翻译，ventilation duct spacer音标、读音、用法和例句_伍贰汉英词典

ventilation duct spacer

基本解释

专业释义

土木建築工程