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。
Dynamic pressure is a function of velocity and air density, which in turn is dependant upon altitude and temperature.
动态压力是一个功能的速度和空气密度，而这又是取决于海拔高度和温度。
The results showed that mass mean diameter (MMD), and drop size distribution parameter N changed with pressure drop, air velocity, and fuel viscosity.
结果表明，液雾的质量中间直径（MMD）和尺寸分布参数N将随着喷嘴压力降、空气流速、燃油性质而变化；
The effects of quench air pressure, velocity and unevenness on Uster value, M rate and after-processing property of polyester POY are mainly discussed.
讨论了侧吹风的压力、速度以及风速分布不匀对涤纶POY乌斯特值、M率和后加工性能的影响。
The results show that man's movement affects air pressure, air velocity and contaminant distribution, while the impact on air temperature can be ignored.
结果表明，人体活动会对室内气流压力、速度及污染物分布产生一定程度的影响，对温度分布的影响可以忽略。
In certain conditions pressure and velocity distribution of air flow inside the conical holes of the seed-metering wheel can be analysed and calculated approximately as in an angular region.
论证了在一定条件下，排种器锥孔中的压力和速度分布可以近似的按角形域进行分析和计算。
With increase of bed height, air pressure and power consumption rise, expansion ratio of the bed decreases, but the density stability and critical fluidized velocity of the bed are hardly changed.
随着床层高度的增加，所需风压及功率增大，膨胀率有所降低，而床层密度的稳定性和起始流化气速几乎不变。
Simulates the changes of pressure difference, velocity field and the air flow in the door opening process, and discusses the influence to the contamination dispersion.
模拟了开门过程病房内外压差的变化，门附近的流场状况，以及进出门气流的变化状态，探讨了开门对污染物扩散的影响。
The difference temperature and air of indoor and outdoor, can affect the pressure distribution of the high-rise building and the smoke velocity.
不同室内外温差、火源位置、室外风等因素会对高层建筑中的压力分布，烟气运动速度产生不同程度的影响。
On the basis of experiment of two-phase pressure drop, for air-water flow through horizontal tube, the effect of mass velocity on the two-phase pressure drop is analyzed.
在对空气-水在水平放置的圆管内流动时的两相压降实验的基础上，分析质量流速对两相压降的影响。
The influence of pressure, static bed height and fluidized air on the minimum spouting velocity was studied.
研究了压力、静止床高及流化风对最小喷动速度的影响。
The velocity vector distribution, pressure distribution and contours of volume fraction of air were predicted for an axisymmetric case.
计算了二维轴对称气穴流场的速度、压力及气体体积比分布。
Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagation of pressure waves.
风向、风速、气温和气压对压力波的传播有十分巨大的影响。
The relationship between the onset of CVD and meteorological factors including temperature, air pressure, relative humidity, wind velocity was analyzed by circular distribution analysis,.
圆分布分析脑血管病发病的季节规律；直线相关、多元逐步回归分析气象因素与脑血管病发病之间的关系。
It is designed for both differential pressure and air velocity measurements.
设计主要用于压差和空气速度测量。
The intelligent monitoring instrument is able to find out hidden dangers in coal mine ventilation system through the monitoring of underground air pressure, air velocity and temperature, etc.
该智能监测仪通过对井下风压、风速、温度等参数的监测，找出煤矿通风系统存在的隐患。
Following the gradual enlargement of steam generation pressure, the flow velocity of exhausting steam is accelerated; then, the valve core is pushed upwards to block an air exhaust passage.
随着产生蒸汽的压力逐渐增大，排出蒸汽的流速加快，将阀芯上推堵住排气通道。
The following topics were studied in this paper:(1) Analysis of the airflow in the air-conditioning room, and to find out the equations of the parameters such as temperature, velocity and pressure.
分析暖通空调室内气流的流动情况，建立起模拟区域内各种基本参数（温度、速度等）所满足的方程。
The following topics were studied in this paper:(1) Analysis of the airflow in the air-conditioning room, and to find out the equations of the parameters such as temperature, velocity and pressure.
分析暖通空调室内气流的流动情况，建立起模拟区域内各种基本参数（温度、速度等）所满足的方程。
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