通风

The air conditioner forced draft fan ventilates the way to have longitudinal and the crosswise two kinds generally, the lateral ventilation the air current overflow sectional area is big, the wind speed is small, easy to create the big area the dead angle, but longitudinal ventilates the air current the overflow sectional area to be small, the wind speed is big, the dead angle area is very small.

冷风机通风方式一般有纵向和横向二种，横向通风的气流过流断面积大、风速小，容易造成较大面积的死角，而纵向通风气流的过流断面积小，风速大，死角面积很小。在使用条件许可的情况下，应该尽可能采用先进的纵向通风方式。

The C, in relation to Cw and Cd, was obtained with the consultable value of 0.178 for the continuous roof vent, 0.318 for the rolling-up roof vent for the rates due to wind forces, and Cd was obtained with the consultable value of 0.667 for the continuous roof vent, 0.863 for the rolling-up roof vent for the rates due to buoyancy effect in related situations.

在实验条件下，以风力为主导通风时Cd 和Cw的相关参量C的参考值对天窗开启式系统为0.178，对卷膜通风式系统为0.318；而在以温度为主导通风时Cd的参考值对天窗开启式系统为0.667，对卷膜通风式系统为0.863。

Ventilating system of this coal mine is of from center place to corner. The main drivage face and coal face of this coal mine converge in mine section 66. There are so many ventilating equipments and ventilating ways are so long in mine sections.

本文以井亭矿66回采面为研究对象，井亭煤矿目前的通风系统属中央分列式通风，矿井的主要采、掘工作面集中布置在66采区，采区内通风设施多，通风线路长。

The resistance measuration on ventilation system of mine is an important content of ventilation resistance technology management.

矿井通风阻力测定是通风技术管理工作的重要内容之一，掌握矿井通风系统阻力的分布情况对矿井通风日常安全管理十分重要。

And has brilliant prospect due to its simple structure, good economy and energy saving performance.Based on the full scale passive solar experimental building in DUT, in which the researcher carried experiment as the main method and the CFD simulation as the minor method, the research focuses on passive ventilation formed by the Trombe wall. This paper analyzed the indoor thermo and humidity performance of passive solar building with Trombe wall, and the different ventilation patterns in different seasons, revealing the role of passive ventilation in improving indoor environment. Also the paper researched the characteristics of passive ventilation on air flow and heat transfer mechanicsms, and put forward the best control and adjusting method. Meanwhile the paper gained an empiric formula in use of calculating the natural convection heat transfer and found the key factor of influing the indoor environment.

本研究以被动式采暖降温技术为依托，采用实验和CFD数值模拟的研究方法，重点研究了新型被动式太阳房在不同气候条件下室内热湿环境的动态变化规律，分析不同季节下被动式太阳房内不同的被动式通风模式以及不同被动式通风模式在改进室内热湿环境方面的作用：揭示了特定被动式通风流动和换热特性、控制与预测方法；得到了计算被动式通风对流换热量的经验公式以及影响室内热湿环境的关键因素；了解了含有特朗贝墙体被动式太阳房的自身优势和仍待改进的方面；在实体大被动式太阳房实验技术方面积累了一定的经验。

This paper is based upon XiShan Colliery Parent Company .The data of DongQu Mine pit ventilation resistance mensuration is combined. And system theory, graph theory, ventilation network technology and computer technology are utilized. According to the reality of coalmine, we think that graph and database is incorporate in mine ventilation system. So based on this, ventilation system standard graph is founded, the tool of ventilation graph to draw is made, the ventilation network calculation is realized, the outcome of the ventilation network calculation is seen on the screen, and opaquing and inquiring of the road parameters and so on. In addition to mine ventilation drawing-database visual management system is developed.

本文基于西山煤矿总公司东曲矿〖东曲矿矿井通风网络计算机管理系统〗科研项目，结合东曲矿矿井通风阻力测定，运用系统理论、图论、通风网络技术及计算机技术，针对煤矿实际，将矿井通风系统中图形和数据库贯穿为一体，创建了通风系统标准图库并编制了通风图形绘制工具，实现了风网解算和解算结果图形显示及巷道参数的修改、查询等功能，开发了矿井通风图形数据可视化管理系统。

On basis of the features of Yuanliangshan tunnel, jet ventilation technology has been successfully used in the construction of the tunnel and the calculation method for the air volumes of construction jet ventilations are improved. The calculation method for the air volumes of construction jet ventilations is not only suitable for gas tunnels consisting of twin tubes, but also suitable for long tunnels with ancillary adits and large-scale underground structures.

在圆梁山隧道的施工通风中，结合该隧道特点，成功实施了射流通风技术，并进一步完善形成了施工射流通风的风量方法，该方法不仅适用于有平行双孔的瓦斯隧道，同时也可在有辅助坑道的长大隧道或者大规模地下空间的施工通风中推广应用。

The paper presents the principle of dividing fire protection sections in fortes road tunnels, the principle of fire ventilation design of fortes road tunnels in segment longitudinal ventilation mode, the fire ventilation design method, the fire ventilation calculation criteria and jet fans' collocation principle of fortes road tunnels in segment longitudinal ventilation mode.

论文提出了特长公路隧道防火分区划分原则，特长公路隧道分段纵向通风模式下的火灾通风设计原则，特长公路隧道分段通风模式下的火灾通风设计方法，特长公路隧道分段通风模式下的火灾通风计算控制基准，特长公路隧道射流风机布置原则。

Based on the model calculation,an FAPP ventilation system was madein Beijing Poultry Breeding Company.Through running test and a series ofphysical and chemical characteristic measurement,the distribution of flowspeed in length,and breadth was given.The average temperatureand rel-ative humidity,the amplitude of T and RH per day of 30 days in winter,and instantaneous T and RH in 24 hours wre measured in FAPP house,com-paring house and outside,the result shew that FAPP ventilation system wassuperior to comparing house.The dust concentration and microrganism con-tent were also measured in the rearing piriod of poultry,the value in FAPPhouse was junior to comparing house.

在模拟结果的基础上，设计了一套FAPP通风系统并在北京市种禽公司原种后备场种雏舍进行了实际运行试验和一系列的理化特性参数的测试，试验给出的正压管道式送风舍纵轴方向及横截面上气流速度的分布规律与模拟结果相吻合；通过对FAPP舍、对照舍及舍外冬季30天的逐日平均温湿度、温湿度振幅以及24小时瞬时温湿度的测试分析，显示了FAPP通风系统在冬季通风中明显优于负压通风系统；在雏鸡全周期的饲养过程中还对舍内粉尘与微生物的含量进行了测试，FAPP舍的值明显低于对照舍，这一结果为FAPP通风系统的推广应用提供了实验依据。

In order to obtain blended cigarette products with different tar deliveries,the relationship among the ventilation rates of cigarette,tipping paper and cigarette paper was investigated with single-line or two-line online laser perforation,and a mathematical model between the ventilation rate of tipping paper and tar delivery was established.

为了得到不同焦油量的混合型卷烟产品，考察和测试了一排、两排在线激光打孔条件下的卷烟总通风率、接装纸通风率、卷烟纸通风率三者之间的关系，建立了接装纸通风率与焦油之间的数学模型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。