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- fluctuation wind speed spectrum 脈動風速譜
- wind speed spectrum 風速功率譜
- Three stages wind speed control. 三段風速控制。
- The wind speed had to be just right. 風速必須得恰倒好處才行。
- In an average wind speed 2.0 m / sec. 年平均風速為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. 方法採用Daven port風速譜並根據Shinozuka理論;應用簡諧波疊加法分別模擬了脈動風速、脈動風壓和脈動風荷載時程曲線.
- No leakage in the windows under wind speed of 60m/s or 216 km/hr. 風速每秒60米(時速216公里)之風力下，玻璃窗沒有漏水。
- Incline the wind meter to find the maximum wind speed direction. 運用風速計去發現最大風速及風向。
- Close to the ground, wind speed increases quickly with height. 靠近地面,風速隨高度迅速增大。
- The spring wind speeds the greening of the plants. 春風催綠。
- From the composite mission spectrum and the related rotating speed spectrum, the accelerated mission test spectrum can be derived. 綜合任務譜和相應的轉速譜的獲得為推導加速任務試車譜奠定了基礎。
- DPi, DTi and WIi were dew period, dew temperature and wind speed. DPi，DTi，WIi分別代表露時、露溫和風速。
- Surface roughness has a profound effect on wind speed. 地表粗糙度對風速有相當深刻的影響。
- They can generate wind speeds faster than 250 mph. 龍捲風的風速可以超過時速二百五十英里。
- 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. 然後,應用經典的基於功率譜密度函數的譜表現方法,結合D avenport譜生成了目標場地的風場;
- To define wind speed and direction look at the shadow of a cloud on the ground. 空中風速及風向可由雲在地面影子判斷。
- Lying between these high-speed air streams are air streams of lower wind speed. 在這些高速氣流之間,會出現較低速的氣流。
- Wind speed measurements shall be made with a cup classified anemometer. 用已分好類別的杯狀風速計進行風速測量。
- They were subject to violent yawing at low wind speeds. 它們在低風速下會發生強烈的偏離。
