1·In theory, the airbreathing engine could propel an airplane to speeds of Mach 7 or faster, enabling aroundtheworld flights that would take several hours.
从理论上讲，这种喷气引擎可以将飞机速度推进到7马赫甚至更快，使飞机能在数小时内完成环球飞行。
2·The Japanese space agency, JAXA, is actually testing the idea, using special heat-resistant paper, another of Toda's plane designs, and a Mach 7 wind tunnel.
日本的宇宙航空研究开发机构(JAXA)正在实验这一想法。该机构利用特制的耐高温纸，采用户田拓夫另一个飞机设计，在一处7马赫的风洞进行测试。
3·Slower cruising — at about Mach 0.7, or seven-tenths the speed of sound, which is 5 percent to 10 percent slower than today's aircraft — and at higher altitudes, to save fuel.
更低速的巡航——大约0.7马赫，即音速的十分之七，比今天的飞行器低5 - 10%——并且飞行于更高海拔以节约燃油。
4·Secondly, the bachelor also have mach more pressure.
其次，本科也有马赫更大的压力。
5·That staging point is expected to come at about the 124-second mark, when the supersonic Ares I-X rocket is traveling Mach 4.7? More than four times the speed of sound, its Max speed for the flight.
分离时刻预计在124秒时，这时超音速火箭战神i - X以4.7马赫的速度飞行——这是音速的四倍，也是飞行的最高速度。
1·With increasing convective mach number the skewness and flatness factors increase a little and the peak positions move outwards.
随着对流马赫数的增加，脉动的偏斜性和间歇性略有增加，并且其峰值对应的位置向混合层外侧移动。
2·We parallelized LM_NS3D, a program for three dimensional low mach flow simulation, with PVM as the message passing environment. Communication is carefully optimized. Data locality is achieved.
以PVM为消息传递支持软件实现了低马赫数流动三维数值模拟程序LM_NS3D的并行化，考虑了通信优化、数据局部化及负载平衡等。
3·With increasing convective Mach number the streamwise fluctuation intensity varies little but the transverse and spanwise intensity along with the thickness growth rate decrease.
随着对流马赫数的增加，流向脉动强度变化不大，横向和展向脉动强度减小，混合层的扩张率随之减小。
4·It shows the indicated airspeed and the Mach number.
它显示了飞行速度和马赫数。
5·The hot air permitted higher speeds before the critical Mach number was exceeded.
热空气可使之在超过临界马赫数之前达到更快的速度。