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- fluctuation wind speed spectrum 脈動(dòng)風(fēng)速譜
- wind speed spectrum 風(fēng)速功率譜
- Three stages wind speed control. 三段風(fēng)速控制。
- The wind speed had to be just right. 風(fēng)速必須得恰倒好處才行。
- In an average wind speed 2.0 m / sec. 年平均風(fēng)速為2.;0米/秒。
- The time history of pulse wind velocity and wind pressure on the structure has been simulation based on Davenport wind speed power spectrum and Shinozuka theory. 方法采用Daven port風(fēng)速譜并根據Shinozuka理論;應用簡(jiǎn)諧波疊加法分別模擬了脈動(dòng)風(fēng)速、脈動(dòng)風(fēng)壓和脈動(dòng)風(fēng)荷載時(shí)程曲線(xiàn).
- No leakage in the windows under wind speed of 60m/s or 216 km/hr. 風(fēng)速每秒60米(時(shí)速216公里)之風(fēng)力下，玻璃窗沒(méi)有漏水。
- Incline the wind meter to find the maximum wind speed direction. 運用風(fēng)速計去發(fā)現最大風(fēng)速及風(fēng)向。
- Close to the ground, wind speed increases quickly with height. 靠近地面,風(fēng)速隨高度迅速增大。
- The spring wind speeds the greening of the plants. 春風(fēng)催綠。
- From the composite mission spectrum and the related rotating speed spectrum, the accelerated mission test spectrum can be derived. 綜合任務(wù)譜和相應的轉速譜的獲得為推導加速任務(wù)試車(chē)譜奠定了基礎。
- DPi, DTi and WIi were dew period, dew temperature and wind speed. DPi，DTi，WIi分別代表露時(shí)、露溫和風(fēng)速。
- Surface roughness has a profound effect on wind speed. 地表粗糙度對風(fēng)速有相當深刻的影響。
- They can generate wind speeds faster than 250 mph. 龍卷風(fēng)的風(fēng)速可以超過(guò)時(shí)速二百五十英里。
- The exponent P is a function of wind speed, ground roughness, stability, etc. 指數P是風(fēng)速、地面不平度、穩定度等的函數。
- Then,the classical spectral representation method based on power spectrum density functions is applied,and Davenport spectrum is used to generate wind speed histories of a given field. 然后,應用經(jīng)典的基于功率譜密度函數的譜表現方法,結合D avenport譜生成了目標場(chǎng)地的風(fēng)場(chǎng);
- To define wind speed and direction look at the shadow of a cloud on the ground. 空中風(fēng)速及風(fēng)向可由云在地面影子判斷。
- Lying between these high-speed air streams are air streams of lower wind speed. 在這些高速氣流之間,會(huì )出現較低速的氣流。
- Wind speed measurements shall be made with a cup classified anemometer. 用已分好類(lèi)別的杯狀風(fēng)速計進(jìn)行風(fēng)速測量。
- They were subject to violent yawing at low wind speeds. 它們在低風(fēng)速下會(huì )發(fā)生強烈的偏離。
