relative wind

By using the Doppler radar echo about Base Reflectivity ( R), Storm Relative Vel Map ( SRM), Vert Integrated Liquid ( VIL) etc, a severe hail and wind weather process which occured in the south of North China on June 20,2004 is analyzed.

运用多普勒雷达的基本反射率（R）、风暴相对径向速度（SRM）、垂直积分液态含水量（VIL）等产品，分析了2004年6月20日华北南部罕见的冰雹大风天气过程。

The wind component relative to the airplane direction and coming from behind the airplane.

飞机后方的来风在飞行方向上的分量。

Study on Synchronization Technology and its Relative Problems of Wind Power Generation System

风力发电并网技术及若干问题的研究

The results showed that the minimal relative wind speed in the windward area of firebreak tree belt with a sparse and tight structure was down to 70% below, but in the windward area of the ventilate structure was only down to about 80%.

结果表明：紧密结构与疏透结构的防火林带迎风面的阻风性能比较好，最小相对风速达到70%以下，而通风结构的阻风性能最小，迎风面的最小相对风速在80%左右。

While considerable rigid wind tunnel test research has been performed to investigate wind loads on such simple somatotype fabric structures, saddle type, umbrella type and so on, relative little work has been conducted on aeroelasticity of complicate somatotype roof buildings.

目前，膜结构风洞试验以刚性试验居多，弹性试验相对较少，且国内这方面研究主要针对鞍形、伞形等简单体型的结构形式，与实际的工程应用相差较远。

The acute angle between the direction of the undisturbed relative wind and the chord of an airfoil.

相对稳定的风的方向与机翼弦之间的锐角。

It is certainly affected by changed wind velocity and relative humidity on compressive strength.

变化的风速和相对湿度对混凝土的抗压强度有一定的影响.

Annual temperature average has increased significantly during 1956~ 2006. Annual precipitation showed a tendency to rise during studied time period. The annual wind speed and the annual relative humidity average decreased markedly.

1956～2006年年均温度显著增加，年降水量缓慢增加，年均相对湿度和风速呈显著下降趋势。

Put the fire on lee side, with relative wind abeam.

置火于下风舷, 并使船侧受风.

If metro station assisted by artificial ventilation, the measured wind data is relative stable and fresh air rate is enough.

当地铁站为机械辅助式自然通风时，实验所得的风速数据较为稳定，能有效的引入自然风，且换气次数较大。

The correlations of average temperature, average maximum temperature, annual sunshine hours, average wind speed, average relative humidity, annual rainfall, annual evaporation and altitude with ET_0 were analyzed.

并分析了平均气温、平均最高气温、年日照时数、平均风速、平均相对湿度、年降水量、年蒸发量、海拔高度与ET0的相关性，各站ET0与平均相对湿度相关性最好；

Experiments of the different relative location of typhoon and Central Mountain Range show that the wind is most propitious to cause the terrain depression when the wind approximatively upright with Central Mountain Range.

在台风中心相对于中央山脉在不同位置时，气流的入流角近垂直于中央山脉的情况下，最有利于高地形背风面诱生出地形低压。