风洞

Wind tunnel investigation is conducted on six different canard configuration models over range of Mach from 0.8 to 2.5.The experiment data analyzes the regulation of rolling characteristics with Mach number and angle of attack,and the effect of rolling characteristics for different configurations is discussed.The rolling damping characteristics are also studied.

通过风洞实验得到了跨、超音速下六种组合模型的气动力数据，由实验结果分析了远程弹滚转特性随马赫数和攻角的变化规律，以及不同鸭式气动布局对滚转特性的影响，此外还分析了远程弹的滚转阻尼特性。

Then we can get high mach number by small speed. I designed the cycling experiment system.

本论文完成了室内超音速风洞封闭实验系统的设计。

Based on rigid model tests in wind tunnel and synchronous manometric method on internal and external facades,wind pressure and gust factor distribution on double-skin facades of rectangle building was analyzed emphatically,and comparison of wind load between internal and external facades in different airflow zones was discussed.

采用刚性模型风洞试验和内、外层幕墙同步测压技术对矩形建筑的风荷载和阵风系数的分布规律进行详细研究，探讨了内、外层幕墙在不同气流流动区域内的风荷载大小关系。

This paper gives an account of the methods of calculation together with an analyses, by which the wind-tunnel test data of the model with nose cone for the CK-1C target drone are corrected to the aerodynamic data for real flight.

本文叙述了CK-1C靶机带堵锥风洞模型的实验数据到真实飞行情况下使用的气动力数据的计算和分析方法。

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.The obtained test results demonstrate good accordance with those published abroad in the behavior, tendency of the flow asymmetry and the effects due to Reynolds number, incoming turbulence and model geometry etc.

本文通过模型表面压力分布测量、表面油流图谱显示和流场热线信号采集分析等手段，在低湍流度风洞中对细长拱柱体模型的大攻角流动非对称性及其影响因素进行了较为深入的研究，试验获得的细长体大攻角流动非对称性的特征、趋势以及Re数、湍流度和模型构型等因素对大攻角流动非对称性的影响规律，与国外资料上发表的结果是一致的。

Nepetalactone, the primary component of catnip oil, were extracted by the using method of simultaneous distillation-extraction and separated by using silica gel chromatography column. To compare the repellency of nepetalactone and DEET on mosquitoes, topical bioassay method on the skin and a cage olfactometer were employed to assess the effective protection time and the spatial repellency.

采用同时蒸馏萃取及硅胶柱层析法从猫薄荷Nepeta cataria植物中提取、分离制得驱蚊有效成分假荆芥内酯，并采用个体涂肤有效保护时间测定法及风洞空间驱避效果测试法，对假荆芥内酯与避蚊胺的驱蚊效果进行了对比试验。

When used alone, nepetalactone attracted mosquitoes to the trap of the olfactometer, however, when mixed with human odor or a L-lactic acid dichloromethane solution, nepetalactone inhibited the attractiveness obviously. Nepetalactone exhibited a spatial repellency, but was not an ideal topical repellent. DEET did not have the attractiveness to mosquitoes, and did not exhibit inhibition on L-lactic acid dichloromethane solution too, hut enhanced the attractivity of human odor to mosquitoes.

风洞定向行为测试结果表明，假荆芥内酯单独作用时，对蚊虫有微弱的引诱效果，但在人体气味及二氯甲烷L-乳酸存在时，可显著抑制这些引诱物对蚊虫的引诱效果，是优良的空间驱避剂；DEET对蚊虫无明显的引诱作用，对二氯甲烷L-乳酸溶液引诱剂也无明显的抑制效果，但可显著增强人体气味对蚊虫的引诱性。

The intermittent gleams from the air-holes only appeared at very long intervals, and were so wan that the full sunlight seemed like the light of the moon; all the rest was mist, miasma, opaqueness, blackness.

间隔着的通风洞的光线相距很远，使大太阳暗淡如月光；此外就是迷雾、腐烂的气息、不透光、黑暗。

One type is called open circuit tunnels with an air entry open to the atmosphere.

最好的建造此风洞的方法是一个吹风机的造型。

The proper orthogonal decomposition method is introduced in this paper for this problem.

介绍了本征正交分解法在这一问题中的应用，并对基于球面及柱面壳体模型风洞试验得到的风压数据进行了比较验证。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失