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。
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。
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。
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。
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。
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。
It's suggested that design basic wind speed based upon 50-year mean recurrence interval, and coefficient for importance of a structure taken as 1.
建议声屏障结构设计基本风速重现期取50年,风荷载应考虑活载风与极限风两种情况,重要性系数取1。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
根据山地风场中特有的平均和脉动风速特性,研究高层建筑平均风荷载、背景和共振等效风荷载特性。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
根据山地风场中特有的平均和脉动风速特性,研究高层建筑平均风荷载、背景和共振等效风荷载特性。
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