“排烟防火阀”的概念、定义、翻译、参考文献-科学参考

单词	排烟防火阀
释义	排烟防火阀 Encyclopedia 工学防排烟技术释 fire damper in smoke-venting system排烟防火阀安装在机械排烟系统的管道上起隔烟阻火作用的阀门。平时呈开启状态，火灾时当排烟管道内烟气体温度达到280℃时关闭。
随便看	Jiao Xun Jiao Yanshou Jiao Yesong Jiao Yulu Jiao Yushu Jiaozhi Jiaozhi Provincial Administration Commission Jiaozhou Jiaozhou Museum Jiaozhou Shi Jiaozhou Wan Jiaozhou Yangge jiaozuo coalfield Jiaozuo Film and Television City Jiaozuo Shi Jia Peizhi Jia Pingwa Jia Qinghan Jia Rang Jiarong(Gyarung) language Jia Shan Jia Shenxiu Jia Shigu Jia Shijun Jiashi (Payzawat) Xian

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