声速的

In this project, some new techniques to enhance supersonic mixing layer are studied by the numerical method.

本项目利用数值模拟手段，对超声速剪切层混合增强的新方法进行了探索。

Objective: Study the influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field.

目的：研究声衰减系数、声速、温度等媒质参数对声聚焦的影响。

Ultrasonic wave pulse technique was used to investigate the velocity of sound and attenuation of the damaged samples PBXN-S.

采用超声探伤仪对损伤材料PBXN-5的声速和声衰减进行了测量。

The frequency, wave lenth, and speed of sound are closely related.

频率，波长和声速三者是密切相关的。

The experment results show that the velocity of shock wave approximate equals tothe sound speed of water.

实验结果表明，冲击波的传播速度约等于水中声速。

In order to improving system's precision, many techniques such as improving precision of calculagraph ,using various of filters, on-line temperature compensator, echo location criterion are needed and designed.

为了提高系统测量的准确性和精度，采用了提高计时器分辨率、多重滤波、声速校正以及波形分析算法等措施。

In order to simulate the liquid fuel atomization in supersonic crossflow, a hybrid spray atomization model was developed.

为了模拟超声速气流中液体射流的雾化，发展了一种液滴破碎混合模型。

On the basis of the acceleration control, the terminal nonplanar maneuver of a supersonic antiship missile is researched in this paper, it contains the cycloid maneuver and the spiral maneuver.

基于过载控制技术，对超声速反舰导弹的末端非平面机动进行了研究，包括摆式机动和螺旋机动。

A numerical simulation was conducted for a fixed-geometry two-dimensional mixed-compression supersonic inlet with sweepforward high-light and "X" type missile configuration. The results indicate:(1) The total pressure recovery declines with the rise of the free stream Mach number, while the mass flow ratio rises firstly and then declines when its maximum value is obtained at the design point.

针对一种定几何二元倒置&X&型混压式超声速进气道开展了数值仿真研究，结果表明：随着来流马赫数的增加，进气道总压恢复系数下降，而流量系数却先上升，在设计点达到最大值后下降。

The wind Tunnel/flight Correlation panel discussed the validation of the National transonic Facility in the following order.

风洞与飞行相关性小组按下列顺序讨论了国家跨声速设备的鉴定工作。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。