“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	precast concrete frame structure with specially shaped columns precast concrete shear wall structure precast concrete structure precast concrete track beam precast pavement precast prestressed composite floor slab precast prestressed hollow floor slab pre-cataclysmic binary pre-cataclysmic variable precategory precaution precautionary approach precautionary demand for money precautionary principle precautionary principle of biosafety assessment precautionary principle of EMF precaval vein precedance relation in dependency tree precedence precedence function precedence grammar precedence method precedence relation precedent anthologies precedent as reference in a trial

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。