Presents three commonly used engineering control methods, including ventilation, air filtration and ultraviolet germicidul irradiation (UVGI), discusses the relationship between ventilation rate and infection rate based on the Wells-Riley equation, gives the filtration efficiency of some air filters for bacteria, and analyses the limitation of UVGI for airstream.
阐述了微生物在空气中的传播机理,介绍了通风换气、空气过滤及紫外线杀菌三种控制方法,采用Wells-Riley方程分析了通风换气对降低感染率的影响,给出了一些常见空气过滤器的滤菌效率,分析了紫外线照射用于流动空气杀菌的局限性。
Pratice indicates that ventilation is an important measurement to control the environment in chicken house.
现代养鸡生产中，通风换气是调节鸡舍环境的重要措施。
Focusing on the ventilation characteristics of the common housing,a thermosyphon heat exchanger prototype was designed.
针对普通住宅日常通风换气的特点设计出一台小型热虹吸管式通风换热器的样机,并利用热虹吸管换热器对房间通风系统中的冷量(热量)进行热回收实验研究。
Greenwood Air Management Ltd.
绿林通风换气系统公司
Application of the Heat-pipe Heat Exchanger for Room Ventilation
热管换热器在通风换气中的应用研究
Ventilation is carried out according to the minimum air volume in the specifications.
并按说明书中的最低通风量进行通风换气。
air the old winter clothes; air out the smoke-filled rooms.
使烟雾缭绕的房子通风换气。
The Simulation and Optimization Research of the Compact Heat Pipe Ventilation Equipment;
小型热管式通风换气装置的模拟优化研究
Public do not need to undertake special disinfection normally, need only often ventilated take a breath can.
公共场所通常不需要进行非凡的消毒，只需经常通风换气即可。
The Shanghai China rope draft equipment limited company is located Shanghai Fengxian area Shanghai and Hangzhou road 3,352 is specialized devotes to the well ventilated air regenerating device scientific research, the manufacture, the trade to a body joint capital enterprise.
上海华索通风设备有限公司是一家专业致力于通风换气设备科研、制造、贸易于一体的合资企业。
A passageway or shaft in which air circulates, as in ventilating a mine.
通风道，换气坑空气流通的通道，如使矿井通风的风道
Experimental Study on Characteristics of Up-fixing Diffusers and Space Air Distributions of Displacement Ventilation;
上置置换通风风口特性及气流组织实验研究
Numerical Simulation of Aerosol Distributions in a Displacement Ventilated Room;
置换通风房间内气溶胶分布的数值模拟研究
Numercal Simulation on the Indoor Air Quality of Displacement Ventilation;
置换通风空调室内空气品质的数值模拟研究
To admit fresh air into(a mine, for example) to replace stale or noxious air.
使通风，使空气流通使新鲜空气进入（如矿井）以替换不新鲜的或有毒的空气
Methodology of avoiding condensation and downdraft in displacement ventilation plus cooling ceiling system
置换通风加冷却顶板系统避免结露和下降气流的方法
dilution air plant
换风装置空气供给装置
Research on Regularity of Ventilation Efficiency in Displacement Ventilation Room;
置换通风房间通风效率规律性的研究
Heating, Ventilating and Air-conditioning Unit
暖气、通风和冷气股
ventilator outlet pipe air cleaner
通风器出气管滤气器
d ventilating-fan system
强制进气排气通风系统