smoke free front room是什么意思

用法例句

The research on performance test of smoke-preventing air curtains;

防烟空气幕性能测试研究

Some traditional models for smoke prevention and exhaust are analyzed and compared with the smoke-preventing air curtain.

文中从理论上分析与比较了目前世界各国在高层建筑中所采用的防排烟模式与防烟空气幕的优缺点,从理论上解释了防烟空气幕的合理性与可行性。

By using a zone model, simulates the behaviour of smoke temperature, height, volume fraction of CO changing with time under different smoke control and extraction conditions in the station and introduces three critical conditions as a criterion for judging the effects of different smoke control and extraction methods.

模拟结果表明,只有同时对站台楼梯送风防烟和对火源所在防烟分区及时排烟,才能在车站内实现最有利于人员疏散的安全环境。

With the rapid development of subway,the fire and smoke prevention become an important research topic.

随着地铁在我国的高速发展,在地铁中防火防烟已经成为一个重要的研究内容。

A 2?D mathematical model for the smoke-prevention air curtain is proposed in the paper.

通过分析高层建筑火灾时引起烟气流动的因素 ,建立了烟气流动的二维流场数学模型 ,运用流函数的叠加原理 ,在实验研究的基础上 ,推导了高层建筑火灾时防烟空气幕流量、吹风口宽度和吹风口的射流速度的计算模

In view of the above mentioned reasons,a kind of smoke mask has been developed, which can provide safe individual respiration, keep forest fire fighters safe in putting out forest fires and avoid injury and death accidents.

基于上述原因,本课题研制了防烟口罩。