Aeronautical engineers take their models into wind tunnels to measure performance factors.
航空学工程师将他们的模型放置在风道内来测量性能因素。
Wind tunnels in general are used for testing purposes and aerodynamical optimization.
译文风洞大体上讲是用来得到测试试验结果和空气动力的最佳化。
Most nations lack a single velodrome, let alone access to state-of-the-art wind tunnels.
很多国家连一个赛车场都没有，更不要说先进的风洞了。
It's an important advance for jet simulation to simulate hot jet by cryogenic wind tunnels.
应用低温风洞模拟热喷流，是喷流模拟技术一大进步。
In his spare time, he built model aeroplanes and wind tunnels to test the model aeroplanes.
在空余时间，他自己制作模型飞机，并制造了风洞来测试它的模型飞机。
Munk has been lugging specially designed wind tunnels into the Amazonian rain forest since 2007.
从2007年以来，蒙克就开始着手设计特殊的亚马孙雨林风洞。
Mr Lokerberg and his colleagues refine their designs in wind tunnels then try them out on mountains.
Lokerberg先生和他的同事在风洞中改良他们的设计然后在悬崖上试飞。
ABB has supplied similar drive systems for wind tunnels operated by NASA and the U. S. Air Force.
ABB还为美国国家航空和宇宙航行局(NASA)以及美国空军的风洞提供了类似的驱动系统。
As was the case with many early wind tunnels, NASA says, its structural supports are on the outside.
这一点与许多早期的风洞的情况下，美国航天局说，它的结构支持是在外面。
It is now common practice to test scale models of Bridges in wind tunnels for aerodynamic resistance.
现在的通常作法是按比例缩小的桥梁模型放在风洞里检测它们的空气动力抵抗力。
These experiments were conducted in the wind tunnels, on the rocket sled and by ejection from aircraft.
这些实验是用风洞、火箭车和空中弹射进行的。
A group of the moderate and desirable size of wind tunnels at different speed range is recommended for reference.
文中推荐了不同速度下一组较合适的且能满足需要的风洞尺寸，供人们参考。
It is used in measurement of pressure transients, such as in shock tubes, wind tunnels, and seismograph equipment.
它广泛用于瞬态压力测量，如冲击管、风洞以及地震仪器设备中。
Very early in the century experimenters using open-throat wind tunnels found their tunnels giving very pessimistic results.
在本世纪初期，实验工作者发现用开口风洞得出的结果偏于保守。
The bases of the new standard and some problems on the calibration of high speed wind tunnels are discussed in this report.
本报告论述了新指标提出的依据，并就流场校测的一些问题作了简要讨论。
Experimental results show a promising prospect for utilizing the injector driven technique in advanced transonic wind tunnels.
实验研究还表明引射驱动方式应用于跨音速风洞具有光明的前景。
Researchers hope to soon begin testing of the ADAPWING technology in wind tunnels where they can control loads and monitor performance.
研究人员们希望尽快在风洞中测试这项技术，在风洞中，研究者可以自由控制载荷，并能很方便的观察到叶片性能。
ABB has previously supplied drive systems for wind tunnels operated by the National Aeronautics and Space Administration (NASA) and the U. s.
ABB曾经为美国国家航空和宇宙航行局(NASA)以及美国空军的风洞提供过驱动系统。
With these vertical wind tunnels, researchers have been able to capture, on video, the exact movements that allow the ants to control their glides.
在这些特殊的风洞里，研究院可以通过记录视频来捕捉蚂蚁滑翔的精确动作。
The test results of non-ablative ultra-high temperature ceramic materials(UHTC) in one of the plasma wind tunnels of CARDC are introduced in this paper.
介绍了在CARDC等离子体风洞中开展的非烧蚀型防热材料超高温陶瓷（UHTC）的试验研究结果。
The wind tunnels steady wind velocity control systems are composed of wind tunnel rev control system and wind tunnel velocity and pressure control system.
风洞稳风速控制系统主要由风洞稳转速控制系统和风洞稳速压控制系统构成。
Based on the aerodynamic test of plane models under different positions, the variable Angle system used in low-speed wind tunnels is designed in this paper.
基于对飞机模型在不同姿态下进行的空气动力学测试，文中设计了用于低速风洞的变角度系统。
With the development of domestic automotive industry, it will become a more important component to build the full scale automotive wind tunnels in our country.
随着我国汽车工业的发展，在国内建造全尺寸汽车风洞已经成为汽车行业发展的重要组成部分。
Wind tunnels are important ground facilities for aerodynamic research, and basic research establishment to ensure aeronautics and astronautics of a country keeping ahead in the world.
风洞是空气动力学研究的重要地面试验设备，是保证一个国家航空航天处于领先地位的基础研究设施。
When it becomes necessary to examine the altitude performance of an aircraft engine, three types of facilities may be used-altitude wind tunnels, altitude test beds and flying test beds.
当需要考察一台航空发动机的高空性能时，可以利用三种型式的设备，即高空风洞、高空试验台和飞行试验台。
Including the superfluid helium, the providing of liquid helium to the plant in the space on orbit, cryogenic wind tunnels techniques, the preparation and application of slush hydrogen etc.
论述超流氦冷却技术及空间飞行中的液氦再供给等在轨机载验证、低温风洞技术、氢浆的制备和应用前景等。
For tunnels with a downhill slope the critical wind velocity is somewhat greater than for the corresponding horizontal tunnel.
下坡隧道临界风速会稍大于水平隧道的临界风速。
The critical wind velocity in sloping tunnels will be different from horizontal tunnels due to the stack effect.
在坡度隧道中，由于火风压的作用，临界风速与水平隧道临界风速相比会有一定的差异。
The critical wind velocity in sloping tunnels will be different from horizontal tunnels due to the stack effect.
在坡度隧道中，由于火风压的作用，临界风速与水平隧道临界风速相比会有一定的差异。
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