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This paper conducts a numerical simulation analysis on the fluid-solid coupling of the bridge tower and air by adopting CFD approach.

本文采用CFD方法，在对桥塔进行绕流分析的基础上，还对桥塔—气流的相互作用进行了流固耦合的数值模拟分析。

Both viscous damping and air drag force must be introduced into the dynamic models. The experiment is carried out in the single-axis air-bearing test bed according to the experiment scheme in chapter 3. The results demonstrate the validity of the developed model, while the conventional zero-order approximate approach could lead to bad results for some high speed cases.

结果表明了传统零次近似方法在某些条件下已不能正确描述柔性体的刚柔耦合动力学性质，而一次近似的刚柔耦合动力学模型得到的结果与实验相符，从而证实了一次近似耦合模型的正确性和可靠性。

According to the influence of air pollutant source parameters, weather factors, approach underlying surface layer and non-linearity reaction, the correction coefficient is to modify final simulate value, which perfectly resolves the problem of the result probability and complexity actually. Therefore, the result of the model is more reliable.(2) Long-term monitoring average concentration isoline map and simulating air pollutant concentration isoline map are drawn by drawing function of surfer 8.0 software.

本研究提出的长期平均浓度模型的预测值与实测值的相关系数r=0.813在α=0.05下通过检验，且验证的样本量大，计算结果具有代表性，为湛江市郊区环境空气质量全面预测和污染防治提供理论依据，该模型亦可进而推广应用于SO_2、NO_x、CO等大气污染物的扩散状态研究和计算。

Direct methods are based on the design-by-analysis approach in which the airfoil shape is specified first.

直接的方法是基于设计逐案分析的方法是机翼形状指定第一。

Further analyses revealed that treating the missile as a pilotless airframe was the wrong approach to the problem.

进一步的分析显示，把反舰导弹仅仅当作一个无人驾驶的飞机来设计的思路是错误的。

This approach gives the gases more room to expand without stretching the envelope of the airship too much.

这种方法为膨胀的气体提供了更大的空间，因此无需过多地加长飞船的气囊。

It was for the first time that this approach was applied in the resolution of racemic phenylalanine and alanine.

研究结果说明，这一基于动力学控制肽键合成原理的拆分方法将在外消旋氨基酸拆分方面大有可为。

A mathematical relation model between liquor near infrared spectrum and liquor alcoholicity was established by use of the combination of discrete cosine transformation and BP neural networks, which was a new approach for rapid liquor alcoholicity determination.

采用近红外光谱的离散余弦变换和BP神经网络相结合，建立了白酒近红外光谱与其酒精度之间的数学关系模型，为快速检测白酒的酒精度提供了一种新的方法。

Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

目的 考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

Miles Aldridge: I have always found inspiration in eastern art. I like chinese drawing and painting for it's pure approach to life.

译：我经常从东方艺术中寻找灵感，我喜欢中国画，因为他是一种纯美的表达。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。