The major causes affecting safe and economic operation of boiler air duct system is analyzed and a solution is put forward in this paper.
分析了影响锅炉风道系统安全经济运行的主要原因，并提出了解决方案。
A system composition and design consideration of a pressurized room is present in this article and it is emphasized two parts: pressurized control system and air duct system for this room.
文章介绍了正压房间的系统组成及设计，着重阐述了正压控制系统和风道系统两部分的设计。
The last known case was in Britain in 1978 when a university photographer who worked above a lab handling smallpox died after being accidentally exposed to it from the building's air duct system.
众所周知的世上最后一例天花发生在1978年的英国。 那是一个（无辜的）大学摄影师，当时他正在天花实验室的楼上房间里工作，死于接触到大楼的风道系统偶然带出来的天花病毒。 （译者注：这位摄影师也太冤了。）
The SPRD is used on zone systems when the automatic closing of various zone dampers can create an excessive increase in air pressure and velocity throughout the duct system.
SPRD旁通阀是当各种区域风门自动关闭时用在区域系统中，可以在管道系统中增加空气压力盒速度。
The SPRD will automatically open as the air pressure in the duct system increases, in order to prevent the reduction of air flow and excessive noise and velocity through the duct system.
当管道系统空气压力增加时，SPRD会自动开启，以防止管道系统中空气流动的减少和过度噪音和速度。
The treated air through the duct system is distributed on the premises.
处理过的空气通过管道系统分布在房屋里。
The reason that supply air is not uniform for traditional air conditioning system of passenger car are analyzed, the design methods of static pressure supply air duct are given.
对传统铁路客车空调系统送风不均匀的原因进行了详细分析，同时介绍了静压送风道的结构，对不同类型的静压送风系统进行了送风均匀性测试。
If you decide to have your HVAC system cleaned, it is important that the air duct cleaning services you are inquiring is qualified to do so, so you can enjoy a safe indoor air.
如果您决定将您的暖通空调系统清洗，重要的是，空调风管清洗服务查询您有资格这样做，这样你就可以享受一个安全的室内空气。
The contamination in the central air conditioning duct system is the one of the principal contamination of the indoor air, it include inhalable particle and microorganism.
中央空调通风系统送风中的污染物是室内空气的主要污染源之一，主要的污染物是可吸入颗粒物和微生物。
This paper introduces a new type of fibre system, blowing fibre system(Blolite), which lays optical fibre by blowing air into duct.
本文介绍了新型光纤布线系统——吹光纤布线系统。
This product is made up of five parts: boiler main body, smoke air duct, dust collector, pipe system.
本产品出厂时由五大部分组成：锅炉主体、烟风道、除尘器、管路系统。
The principle of the design of the duct system for the exhaustion of lacol air and a method of determining calculated static pressure and calculating residuary static pressure are introduced.
介绍了局部排风管道系统的设计原理以及计算静压和剩余静压的计算方法 ，最后给出了根据设计原理求解管道直径的方法和工程实例。
An intense field dielectric air filtration system includes a perimeter frame for wall or ceiling mounting at the inlet of a return air duct for an air conditioning apparatus.
一种强场电介质空气过滤系统包括安装在空调装置的回风管的入口处的用于壁或天花板的周界框架。
The invention discloses an exhaust air duct cleaning system, which comprises an exhaust air duct, a dust collecting device, and a collecting device.
本发明公开了一种排气风管清洁系统，该清洁系统包含排气风管、集尘装置以及收集装置。
A quasi-three-dimensional model was developed to simulate earth-to-air heat exchange process in underground duct system(UDS), which ignores heat transfer in the earth in the direction of air flow.
提出准三维土壤—空气传热传质模型，对地道通风系统内空气与土壤之间的热物理过程进行数值模拟。
We select several forms of air distribution methods and ventilation ducts which suitable for the residential organized ventilation system with heat recovery, and identify the ventilation duct laying;
确定了适合于住宅有组织通风系统的通风换气量、启动浓度以及机外余压等有组织通风主要参数。
Rooftop air conditioning unit, a simple and reliable duct air conditioning system, has been widely used in many comfort areas, such as factory and supermarket.
屋顶空调机组由于其设计简单，安装使用方便，广泛应用于厂房和超市等场所。
A typical dual duct system would have 2 zone supply air paths - one for the hot air and one for the cold air - and 1 zone return air path.
而对于典型的双管系统，则由两条区域送风路径(一条用于热空气、一条用于冷空气)和一条区域回风路径组成。
Airflow from the large cyclone collector inhalation top return air duct blower, this machine is a closed loop system, the air flow, and circulation in the flow of positive and negative state.
气流由大旋风收集器上端回风管吸入鼓风机，本机整个气流系统是密闭循环的，并且是在正负状态下循环流动的。
The main products include circular and rectangular duct fans; they are widely used in the hospital, hotel, meeting room and airport, etc for air exhausting system.
主要产品包括圆形管道风机和方形管道风机，其产品被广泛用在医院、酒店、会议室、机场等公共场所的换气和快速排气系统。
Hot air circulation system consists of the fan and suitable air duct which could continuous work even in high temperature o.
热风循环系统由能在高温下连续运转的风机和合适风道而成。
Hot air circulation system consists of the fan and suitable air duct which could continuous work even in high temperature o.
热风循环系统由能在高温下连续运转的风机和合适风道而成。
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