How long do you need to establish the mean wind?
需要多长时间来确定平均风?
The maximum (minimum) of mean wind energy density is 298.
平均风能密度最大值达298。
The paper presents a study on measuring the vent mean wind velocity of solar collecting wall in solar house.
本文对被动式太阳房集热墙风口平均风速的测定进行了研究。
According to this new model the computed mean wind speed, whether in horizontal distribution or along vert...
按此模式计算的平均风速,无论水平分布或铅直廓线都与实际情况比较一致。
Moreover, the cantilever height of roof edge was artificially lowered to investigate its effect on the mean wind loads.
此外,通过降低悬挑部分的高度以研究几何参数变化对平均风荷载的影响。
Finally, The mean wind pressure coefficients of a part of typical measuring points as a function of wind direction are analysed.
最后分析了屋盖上的典型测点的平均风压系数随风向角变化的曲线。
Taking the distribution of mean wind velocity into account, the random crack growth model under variable amplitude load was established.
考虑平均风速的分布的影响,建立了随机荷载作用下的疲劳裂纹扩展模型。
Recently there has been some renewed interest in the influence that the stratospheric mean wind may have on the tropospheric circulation.
近年来,科学家们对关于平流层平均风可能对对流层环流具有的影响产生了进一步的兴趣。
Despite large seasonal variations, the mean wind speed over the oceans hasn't changed much in the last two decades, the researchers report today in the journal Science.
尽管有很大的季节性变化,但是在过去的20多年里通过大洋的风速并没有很大的变化,研究者在今天的科学杂志上报导的。
The relationship between local mean wind speeds and swell significant wave heights for long period has quantitatively estimated from the superposition equation of energy.
并从能量叠加平衡方程,近似定量估计出大洋中长历时涌浪有效波高与局地平均风速的关系。
Finally, mean wind pressure coefficient of the pavilion is researched under the conditions of with and without interference. The reason of wind interference is also analyzed.
最后研究了有无干扰情况下的场馆表面平均风压系数,分析了风干扰的原因。
Evaporation from Erhai Lake decreases with the increase of total cloud cover and relative humidity, and it increases with the increase of mean wind speed and sunshine duration.
洱海水面蒸发随着总云量和相对湿度的增加而减小,随着平均风速和日照时数的增大而增大。
Considering the background section and resonant section of the wind load, the background section is included in the mean wind load, which could simplify the wind load analysis on bridges.
借助随机振动理论,考虑到脉动风荷载的背景和共振分量各自特点,在平均风荷载中引入系数计入背景分量。
Meteorological records in the past 50 years indicate that there has been a sharp decrease in sand dust storm frequency, which is in accordance with the decrease in annual mean wind speed.
近50年来多个站点的观测记录表明了沙尘暴的发生频率处于快速下降的过程,这恰好与年均风速的变化趋势较为一致。
The mean wind energy density, mean effective wind energy density and annual available time of wind energy are calculated by using Two-Parameter Weibull Distribution function of wind speed.
采用风速的韦布尔双参数方法测算出平均风能密度、平均有效风能密度,以及年风能可利用时间。
Based on wind tunnel investigation of Yulin airport terminal old buildings, the mean wind loading, the dynamic wind loading and extreme value distribution of the large arc roof are studied.
根据榆林机场航站楼风洞试验结果,详细分析了大跨弧形屋面及弧形挑篷上的平均风荷载、脉动风荷载及其极值分布,研究了平均风荷载、脉动风荷载的分布特性。
Meteorological data mainly include the average wind speed, mean wind direction, wind standard deviation, average temperature, atmospheric pressure, rainfall, atmospheric stability parameters.
气象数据主要包含平均风速、平均风向、风向标准差、平均温度、大气压、降雨量、大气稳定度等参数。
I mean the wind that blows away the clouds because of it.
我指的是吹走云朵的风。
So to replace that nuclear power plant with wind would mean dedicating nearly 280 square miles of land to a gigantic wind farm, which would be about the size of New York City.
因此,要用风电场取代核电站意味着,一个大型风电场要占地近280平方英里,这几乎与纽约市的面积相当。
Many will shut over the coming decade; strict carbon-emissions targets mean they must be replaced with a mix of nuclear-power plants and wind turbines.
未来十年将会关闭很多电站;严格的炭排放目标意味着这些旧电站必须被核电站和风电站取代。
About 600 miles of the Gulf Coast have been oiled, and a southerly wind in the coming days could mean more oil coming ashore.
墨西哥湾大约六百英里长的海岸被石油污染,将来几天还会有偏南风,这可能意味着更多的石油会被冲上岸。
Strict carbon-emissions targets mean they must be replaced with a mix of nuclear-power plants and wind turbines.
严格的炭排放目标意味着这些旧电站必须被核电站和风电站取代。
The country's power stations are decrepit. Many will shut over the coming decade; strict carbon-emissions targets mean they must be replaced with a mix of nuclear-power plants and wind turbines.
英国的发电站大多老旧,而由于严格的碳排放计划,将有不少在未来10年之内面临被核电站及风电站所取代的下场。
This doesn't mean that wind and solar, which currently provide less than 1 percent of the world's primary energy, will replace fossil fuels, which provide 82 percent.
但这并不意味着仅为全球提供1%能源的风能和太阳能可以取代贡献82%能源的化石燃料。
The wind loading of a tracking radar antenna, for example, results from a mean velocity component that varies with time plus superimposed random gusts.
例如跟踪雷达天线的风力负载是由一个随时间变化的平均速度成分与迭加的随机阵风组成的。
The intermittency of wind power does mean that we would need to run our electricity grids in a very different way.
风能中断需要我们用不同的方法运行电网。
First things first, a green indicator does not mean throw caution to the wind and try something you aren't physically or mentally capable of.
首先要强调的是,标示为绿色的话并不意味着你可以不管不顾地去尝试你的身体或精神无法承受的事。
The admirable fellow literally slaved in my interest, and so, I may say, did everyone in Bristol, as soon as they got wind of the port we sailed for — treasure, I mean.
这位可敬的朋友在我这件事上简直是出了大力了,因此,我可以说,只要布里斯托尔的人风闻了我们要去的港口——我指的是宝藏,每个人都会这么做的。
Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
平均速度剖面,湍流度剖面,积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
平均速度剖面,湍流度剖面,积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
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