声速的

Therefore, it is essential to design flight controllers with high non-linear control ability and robustness for hypersonic aircrafts.

为了掌握高超声速飞行器复杂的动态特性，建立了其模型的微分方程，方程包括刚性和弹性模态。

By analyzing the results obtained above, the dynamic characteristics and flight specialty of hypersonic vehicle can be understood.

此外，还能为高超声速飞行器的飞行控制系统设计提供适当的被控对象。

Measuring sound velocity in the air using stationary wave method is discussed in this paper,phase comparison method and Lissajous figure method both could determine the wave length of ultrasonic wave.

1引言在大学物理实验教学中，测量空气中的声速用传统的共鸣管方法和超声波方法。

A new wing/body configuration of a glide hypersonic vehicle was presented, which was generated by conic lofting design method.

提出了一种新的翼身融合的滑翔式高超声速飞行器布局方案。

The author unites PC, traditional ultrasonic－ testing device, high－ speed data acquisition card and software together as a system. This system can finish A,B,C and P scanning, determine velocity in the tested material ,measure the height, show the defect pictures inside and recognize the defect, etc. The digitization, picturization, intelligence and automation of the testing are realized.

该卡与传统超声探伤仪， PC586计算机以及高级编程软件可非常方便的构成智能化超声检测系统，具有 A、 B、 C、 P扫描、声速测定、厚度测量、图象显示以及缺陷识别等功能，实现了超声检测的数字化、图象化、智能化、自动化。

Besides, the influence of cell Reynolds number on the sphere stagnation point heat transfer rate is analysed by comparing the present results with those available.

通过求解完全Navier－Stokes方程，得到了高超声速情况下钝头体轴对称绕流的较满意结果，同时讨论了网络Re数对驻点热流的影响。

The acoustic modes of phonons dispersion relation are probability of the vector q , and their group velocities in the [001] direction are vL = 5.1k m /s and vT = 3.6 km /s, respectively.

声子谱中的声学模式在低频区与波矢成线性关系的，它们沿[001]方向声速分别为vL = 5.1k m /s和vT = 3.6 km /s。

Part two: both numerical and experimental investigation on the cold flow field of a model dual-combustor scramjet.

超燃冲压发动机是一种新型的吸气式动力装置，在高超声速飞行器上有重要的应用前景。

Objective To study the relationship between bone markers and bone speed of sound in women of different ages.

目的 观察绝经前后不同年龄妇女的骨超声声速和骨代谢生化指标的变化情况及相互关系。

One of the most interesting contemporary problems of flight at high supersonic speed is that of heat transfer and its effects on aircraft performance and structure.

当代高超声速飞行最关心的问题之一，是传热及其对飞机结构与性能的影响问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。