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- Keywords complex terrain;surface wind;frequencies of wind;diurnal variation of wind speed;analysis of wind fiel; 复杂地形;地面风;风频;风速日变化;流场分析;
- 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。
- Area of wind of big range ion, wind speed zephyr measures OK adjustment. 大领域游子风区,风速和风力能够调解。
- The voltage and frequency fluctuating would be brought by the randomicity of wind speed and wind direction.How to minish so as to eliminate the fluctuation is an important research task. 风速、风向的随机波动性会使风力发电机组的输出电压、频率产生波动,如何减小以致消除这一波动是现代大型风力发电技术的一个重要研究课题。
- We need to work on our boat speed but it is difficult with the square boat below 9 knots of wind speed. 我们需要改进的是我们的速度,因为方形的船确实不适合在9节风以下的情况下行驶。
- Special structure, excellent water-eliminating performance, adaptable to wide range of wind speed. 结构独特,挡水性能极佳,适用风速范围广。
- A 10% reduction of wind speed was observed, however, the reduction is well within the natural wind variability of the storm. 曾观测到风速减小10%25的情形,然而这一减小量完全落在风暴中的风的自然变率范围内。
- Design and make a wind turbine which can adjust pitch angle of oar leaves through various of wind speed, and make experiment of characteristic. 通过计算,设计制造出了风压式全程变桨距风能转换装置。
- A gust of wind blew the door shut. 一阵大风吹来，把门关上了。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Through analyse on cooling path of motor, distribution of wind scalar, wind speed and pressure difference of a motor operating at the ratings is obtained. 通过对电机冷却风道进行分析研究,得到电机在额定工况下,电机内部风量分布、速值和压差。
- The key of MPPT(Maximum Power Point Tracking) is to adjust the rotate speed of wind turbine quickly according to the variable wind speed for high efficiency. 变速风力发电机高效利用风能所需的风能最大功率点追踪(MPPT)算法的关键在于能否根据风速变化快速调节风轮转速,使其迅速达到相应的最佳转速。
- Through analyse on cooling path of motor,distribution of wind scalar, wind speed and pressure difference of a motor operating at the ratings is obtained. 通过对电机冷却风道进行分析研究,得到电机在额定工况下,电机内部风量分布、风速值和压差。
- He's just full of wind, the pompous fool! 他空话连篇，是个自负的蠢材！
- However the time sequence of automatic stations is short, this paper discusses the short sequence revising method of wind speed and wind energy density by using the hourly wind . 但自动站风速时间序列较短,前人在对温度、降水等气象要素的短期观测资料方面已取得一定进展,本研究在此基础上探讨了风能参数的短序列订正方法。
- A flurry of wind upset the small boat. 一阵疾风吹翻了小船。
- A frequency of one million megahertz,10000?200Hz. 一百万兆赫(兹)频率，即10000?200赫(兹)。
- A gust of wind made the candles flare. 一阵风吹得烛光摇曳。
- A frequency of one million megahertz,10 ?12?Hz. 一百万兆赫(兹)频率，即10??12?赫(兹)。
- A puff of wind swept his hat off. 一阵风把他的几十。
