["Por favor, qual é a classe de per请翻译成葡萄牙语并保持技术术语不变", "Por favor, qual é a classe de火灾危险为几类，需要防爆吗？？需要防爆吗？？", "Verifique as normas de projeto de drenagem externa,看下室外排水设计设计规范上面对臭氧间有描述" "Este tóposio由本帖最后由梦醒时分_QQe77w于编辑于于 11月25 1在室外给水设计规范室外给水设计规范"

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