实验是在日本室兰工业大学的超声速风洞中完成的。
The experiment was done in the supersonic wind tunnel of Muroran Institute of Technology.
声速也同样，取决于杨氏模量。
光速比声速要快，为每秒钟30万公里。
Light travels faster than sound at the speed of 300,000 kilometres per second.
浮现的黑子区似乎能使当地的声速增加，从而使声波更快地通过这个区域。
The emerging sunspot region seems to boost the local speed of sound, thereby hastening the refracted return of sound waves passing through that part of the solar interior.
第一次测量声速是在什么时候？
他发现声速面通常是不连续的。
He found that the sonic surface was, in general, discontinuous.
协和式飞机的飞行速度比声速还快。
我实在不明白什么是亚声速。
这种新型战斗机的巡航速度为声速的两倍。
我们的老师昨天告诉我们，光速是比声速快的。
Our teacher told us that the speed of light is faster than that of sound.
光速比声速快得多。
光速比声速快。
可以预料，航空学的下一个重大飞跃将是高超声速飞行。
The next grat leap forward in aviation is expected to be hypersonic travel.
这些特点使得高超声速飞行器的飞行控制设计极具挑战性。
All these features make hypersonic flight control design a great challenge to researchers.
在影响多普勒计程仪测速精度的多种因素中，以声速的影响为最大。
Among the factors which affect the accuracy of Doppler log, the speed of sound is the most important one.
结果表明由超声波测试得到的声速值可以方便地估算出混凝土的强度。
The test results indicated that the strength of concrete could be estimated by supersonic velocity values.
本文介绍了一种涡格方法，它适用于亚声速飞机的纵横向气动特性计算。
This paper presents a vortex lattice method which is suitable for the calculation of subsonic longitudinal and lateral aerodynamic characteristics of aircraft.
高超声速化学非平衡尾流的分析与计算是空气动力学中的一个重要课题。
The analysis and computation of chemical nonequilibrium hypersonic wakes are important tasks of aerodynamics.
对薄型材料中超声波传播规律进行分析，得到材料声速与共振频率的关系。
The relation between sound velocity and syntonic frequency is gained by analyzing the ultrasound transmitting in thin material.
横波声速与类瑞利波声速在数值上的差别是明显的，不容忽视，不宜混淆。
The difference between the values of the velocities of the transverse wave and the Rayleigh-like wave cannot be neglected.
针对高超声速再入飞行器最远距离滑翔制导关键技术，设计了一种新型制导律。
A novel guidance law is devised for developing the guidance technology of optimal glide of a hypersonic reentry vehicle.
运用此方法，本文数值模拟了三维开式空腔的超声速、跨声速、亚声速流动。
Using the above method, numerical simulations are implemented for supersonic, transonic and subsonic flows around three-dimensional open cavities.
本文采用改进的流线曲率法对跨声速多级轴流压气机非设计点进行了性能模拟。
An improved streamline curvature numerical method is modified and applied to better approximate the flow fields of multi-stage transonic axial compressors.
光速大约为声速的100万倍，因此光波的反射现象可以有效地用来探测目标物及其距离。
Since the speed of light is about a million times as great as that of sound waves, the reflection of light waves may very well be applied in detecting a target and its distance.
海域水文资料的不断丰富和声速仪的广泛使用，推动了水深声速改正精度的提高。
The accuracy of depth reduction has been improving with the continuous accumulation of hydrographic data and widely application of sound velocity profiler.
海域水文资料的不断丰富和声速仪的广泛使用，推动了水深声速改正精度的提高。
The accuracy of depth reduction has been improving with the continuous accumulation of hydrographic data and widely application of sound velocity profiler.
应用推荐