Ventilation for buildings - instrumentation requirements for air velocity measurements in ventilated spaces including corrigendum ac : 2002 ; german version en 13182 : 2002 ac : 2002 建筑物的通风设备.通风空间气流速度测量用设备要求
The radial velocity profile of the liquid is dependent on the superficial air velocity and the column height , and flows from the wall to the center at bottom of the column 径向液相速度既与气相折算速度有关又与位置高度有关，在塔底部呈现负值，这意味着向塔轴心方向流动。
The results showed that the fluidization air velocity was the most important factor for the average mass ratio of powder and gas in the conveying , and that the least important was the agitator vertical height 试验结果表明，对于平均输送固气质量比，流化风速的影响最大，搅拌棒提升高度的影响最小。
These spaces have very high levels of non glare north daylight , high levels of thermal comfort due to low air velocities and very stable temperature due to the large amount of the thermal mass 这些空间有非常高级别的非炫目性北向日光，和很高水准的热舒适度，这归结于非常低的气流速度和大面积的热介质所造成的很稳定的室温。
Not satisfied by measuring ambient temperature with an obsolete system , ameri - cans invented the wind - chill factor , which combines degrees fahrenheit with air velocity to create a num - ber that ' s much more impressive 美国人不满足于用过时的系统来衡量温度，因此发明了风寒因素，即把华氏度与空气速度结合在一起，所得数字给人的印象要深刻得多。
Abstract : in this paper , experimental study on the influence of air temperature , air velocity and feed rate on the process of impinging stream drying ( isd ) had been performed on an experimental coaxial impinging stream dryer , a number of important conclusions were attained 文摘:利用对撞流干燥法，对小米进行了风温、风量和喂入量等操作参数的试验研究，得到了小米的干燥特性规律。
The test results showed that air temperature , air velocity and feed rate of the materials have great effect on the performance of isd , and in the range of the operational parameters of this test rig the increase of air temperature , air velocity and feed rate of the materials could improve the performance of isd 试验结果表明：风温、风量和喂入量是影响干燥效果的主要因素，在本试验范围内，风温、风量和喂入量的增大有利于干燥效果的提高。
For this reason ， the present status of this problem is carried out in terms of technique ， and through introducing self - developed advanced on - line monitoring system of primary and secondary air velocities of boilers ， the effective means for solving this problem is put forward 对此就该问题的现状进行技术分析，通过介绍自行研制开发出的、先进的锅炉一、二次风风速在线监测系统，提出解决该问题的有效途径，该系统是对目前燃烧监测手段的更新换代。
As a result , the air temperature distribution can not meet the design demand , and the air velocity exceeds the demand value in the design code with original scheme , and with the improved scheme of the same air flow and more air outlets , the distributions of temperature and velocity can meet code requirements 模拟结果显示，原方案工作区断面温度达不到设计要求，风速超出规范要求，改进方案保持总风量不变，增加了送风口数量，其温度场和速度场都能满足规范要求。
Three experimental models were constructed , on the basis of the distribution and diffuse of the main production dust source . the experiments of dust transport and concentration distribution were done for many times , then show that the air velocity and dust distribution are the key factors which control dust distribution of the area nearby dust source 根据矿井主要生产性尘源的分布及发尘特征，构建了3种实验模型进行粉尘运移和浓度分布实验.结果表明，风速和尘源是决定尘源附近区域粉尘分布的关键因素.图8 ，表2 ，参3
