查询词典 wind tunnel

The authors analyze the operation characteristic of distance protection of transmission line connecting wind farm with power grid under the variation of parameters such as the amplitude ratio of electromotive force at both sides, the phase difference of electromotive force at both sides, equivalent impedance of sources, system frequency and so on; based on the real-time current and electromotive force at wind farm side as well as the information of wind power generators participating power generation, a method to adaptively set the operation boundary of distance protection by use of the information at wind farm side only is proposed.

文章分析了风电场和电网联络线的距离保护随电源电势幅值比、电势相位差、电源等效阻抗、系统频率等参数变化时的动作特性，并基于风电场侧的实时电流和电势与参与发电的发电机信息，提出了仅利用风电场侧信息量自适应整定保护动作边界的方法。

Another factor acting on Chukchi Sea ice is the difference in wind field between the two years.The water flux from Pacific is greatly affected by the local wind field in both Chukchi Sea and Bering Sea.In 1999, the wind went against the entering of Pacific water in spring,whereas wind in 2003 spring is benefit to the entering.

直接影响海冰分布的是海面风场，两年风场的差异产生了来自白令海的太平洋入流的差异，对春季海冰融化的提前、夏季入流的减弱和秋季冻结过程的推迟起到关键的作用。

Schleswig-Holstein is Germany's largest wind power state, and its wind power generation accounted for the entire German wind power 50 percent of the total, Europe accounted for wind power of 10%.

石荷州是德国利用风能的第一大州，其风能发电量占全德风力发电总量的50%，占欧洲风力发电的10%以上。

On the basis of the data obtained from the field observations and wind-tunnel modelling, the calculations and comparisons on probability distribution and density, linear correlation analysis of time series, conditional probability density and so on of wind speeds and directions between various sites are made with the aid of statistical analysis of time series, and changes of these variables with height and representativeness of observation period of meteorological data are also discussed.

本文以现场气象观测和风洞模拟实验数据为基础，通过对时间序列进行的统计分析，计算和比较了各个厂址风速、风向的概率分布、概率密度、时间序列线性相关分析、条件概率密度等，还对它们随高度的变化情况、观测时段代表性等问题进行了讨论。

Sample to the value of gas emission of every tunnel once, the whole wind network will be sampled once. For a kind of sample, we will equipoise the gas flow in wind network.

对每一条巷道瓦斯涌出量值进行一次抽样，实际就是对整个风网进行一次抽样，对整个风网的一次抽样在风网中进行瓦斯流平衡，从而得到每条巷道的瓦斯流流量值。

Based on wind tunnel test and theoretical analysis,the vibration mechanism, vibration shape,dynamic response and gust loading factor of the long-span grid roof of Qingdao gymnasiums subjected to wind excitation are analyzed systematically in this dissertation ,and some valuable results are obtained.

本文采用风洞模型试验和计算机数值计算相结合的方法，对青岛体育馆的风振机理、风振形态、风振响应以及风振系数进行了系统研究，取得了一些有意义的结论。

The measurement and control system plays a vital role in the wind tunnel test. The management software is a key to the automatic measurement and control system of the wind runnel test.

测控系统是风洞试验系统的重要组成部分，测控管理软件是实现风洞试验自动化测控的关键。

This report starts with the analysis of high enthalpy real-gas effect, on the basis of high enthalpy real gas effect's characteristics to analyse similar parameters of wind runnel, impose necessary main simulation parameters of wind tunnel.

本文从高焓真实气体效应的特点分析入手，根据高焓真实气体的特点分析了风洞的相似参数，提出风洞需要模拟的主要参数。

Since the model of the canopy and suspension lines are made of flexible fabric, therere some difficulties in wind runnel testing, Such as model supporting, attitude controlling and measuring, and pitch moment measuring etc., compared with the common rigid models used in wind tunnel testing.

由于翼型伞主要由伞衣、伞带等柔性纺织物组成，其风洞试验技术与采用刚性模型的常规风洞试验相比，在试验模型的支撑、模型姿态角控制及测量、作用在模型上力矩的测量等方面都有一定的技术难度。

In wind tunnel for insect flight experiments, the flight behavior of the moths of Mythimna separata was observed systematically under wind flow of different speeds.

利用自制的昆虫飞翔实验风洞，系统观测了在风洞条件下粘虫在不同流速实验气流中的起飞行为与飞翔行为。

Based on the relationship and the phenomenon model, an improved model of MR damper has been presented in this paper.

摘 要：本文在实验数据的基础上建立了磁流变阻尼器输出力与不同常电流控制量的关系，对现有的 p模型进行了改进。

I don't think our founding fathers were very fuckable.

我认为我们的开国元老没什么吸引力