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- Effect of Wind Speed Fluctuation on Sand Transport Rate 风沙流中风速脉动对输沙量的影响
- wind speed fluctuation 风速脉动
- Three stages wind speed control. 三段风速控制。
- The wind speed had to be just right. 风速必须得恰倒好处才行。
- In an average wind speed 2.0 m / sec. 年平均风速为2.;0米/秒。
- No leakage in the windows under wind speed of 60m/s or 216 km/hr. 风速每秒60米(时速216公里)之风力下,玻璃窗没有漏水。
- Incline the wind meter to find the maximum wind speed direction. 运用风速计去发现最大风速及风向。
- Then a real-time quasi-steady turboshaft twin-engined model is founded by simulating the rotor speed fluctuation. 为模拟大负载情况下旋翼转速的波动,建立了双发准定常涡轮轴发动机实时仿真模型。
- Close to the ground, wind speed increases quickly with height. 靠近地面,风速随高度迅速增大。
- The spring wind speeds the greening of the plants. 春风催绿。
- DPi, DTi and WIi were dew period, dew temperature and wind speed. DPi,DTi,WIi分别代表露时、露温和风速。
- The test results show that the misfire malfunction simulation device can run reliably and have an apparent influence on the engine crankshaft instantaneous speed fluctuation. 实验结果表明,失火故障模拟装置运行可靠,通过对发动机瞬时转速波动的诊断能够有效地检测失火故障。
- Surface roughness has a profound effect on wind speed. 地表粗糙度对风速有相当深刻的影响。
- The rattling model of a one stage gear system is established,in which mass unbalance,speed fluctuation of driving shaft and backlash of the gear pair are considered. 在考虑不平衡质量、主动轴转速波动及齿侧间隙的情况下,建立了单级齿轮传动系统的拍击振动模型。
- They can generate wind speeds faster than 250 mph. 龙卷风的风速可以超过时速二百五十英里。
- The exponent P is a function of wind speed, ground roughness, stability, etc. 指数P是风速、地面不平度、稳定度等的函数。
- Three factors of influencing rotation speed fluctuation, torque, feedback of rotation speed and plus of speed controller, were analyzed. Resolvents in allusion to each factors were given. 摘要分析了影响永磁交流伺服系统转速脉动的三个主要因素,即转矩脉动、转速反馈和速度控制器增益,并针对各个影响因素提出了相应的解决措施,仿真结果表明了理论分析的正确性。
- The influence of printing speed on the density and chromaticity of the three-color was analyzed quantitatively through experiments to control the effect of printing speed fluctuation on the color reappearance. 为了控制印刷速度的波动对色彩再现的影响,采用实验的方法,定量地分析印刷速度变化对印刷三原色的密度及色度的影响。
- To define wind speed and direction look at the shadow of a cloud on the ground. 空中风速及风向可由云在地面影子判断。
- They were subject to violent yawing at low wind speeds. 它们在低风速下会发生强烈的偏离。