1.
And to ACT as extension to the tunnel when results are required at Mach numbers beyond the tunnel limits.
以及需要在超出风洞马赫数极限的情况下获得试验结果时，用来作为风洞的延拓。
2.
The point AT which the incident wave, reflected wave, and mach fronts meet is called the "triple point"
入射冲击波、反射冲击波与马赫波波阵面汇合之点叫做“三相点。”
3.
DENG X G, ZHUANG F G, MAO M L.On low mach number perfect gas flow calculations[R], AIAA PAPER 99-3317.
邓小刚.粘性超声速复杂气动力干扰的数值模拟[D]:[博士学位论文],中国空气动力研究与发展中心,1991.
4.
A hot core heater would BE very useful to avoid condensation of the constituents of air at the higher mach numBErs
利用一个核心加热器，可以有效地避免空气成分在较高马赫数时发生冷凝。
5.
All you have to DO is touch a mach to this firelighter and your fire will start.
你只需把火柴碰一碰引燃器，火就燃了。
6.
Ramjets work best at speeds of Mach 2 (twice the speed of sound) and higher.
冲压式喷射发动机在马赫数为2(音速的两倍)或更高时工作得最好。
7.
The main flow is approximately dependent only on Mach number.
主流仍然近似地只同马赫数有关。
8.
Empirical results are needed in the transonic Mach regime
在跨音速马赫数范围内需要经验结果。
9.
Let beggars Mach with beggars
龙配龙，凤配凤，亚崩配亚聋
10.
At Mach 2
以两马赫的速度
词汇听力：
小测验：选择正确的单词