这架新飞机的飞行速度是音速的两倍。
飞机将以两倍于音速的速度飞行。
这架新式飞机以两倍于音速的速度飞行。
迷信的人把优先权放在表面的超音速的优良上。
The superstitious man put the priority on the superficial supersonic superiority.
这些飞机以超音速的速度飞行。
这架新式飞机以两倍于音速的速度飞行。
这喷气式飞机能以两倍于音速的速度飞行。
相形之下，蜗牛的爬行倒可说是超音速的了。
目标是以大约2马赫的速度飞行，也就是音速的两倍。
The aim is to fly at about Mach 2, twice the speed of sound.
X-51A起动超过200秒，促使飞行器速度提高到音速的五倍。
The X-51A burned for more than 200 seconds and accelerated the craft to five times the speed of sound.
超高速冲压喷气发动机引擎在飞机超过音速的情况下不能启动。
Scramjets engines can not start until the plane flies faster than the speed of sound.
基于壅塞现象原理，提出了一种测量气粉两相流音速的新方法。
Based on the forming principle of choking phenomenon, an approach is proposed to measure the sonic velocity of air-powder two-phase flow.
对爆燃的主要特征之一，是火焰的速度大大低于音速的降低旅行。
One of the primary attributes of deflagration is that the flame travels at a speed significantly lower than the speed of sound.
当飞机在水面上以接近音速的速度飞行时就有可能产生这样的圆环。
Rings like this can form as an aircraft traveling low over the water nears the speed of sound.
流速，在这个位置，绝不能超过当地音速的，据说是在一个呛条件。
Flow velocity, at this location, can never exceed the local speed of sound, and is said to be in a choked condition.
在几千米外，主弹头分成几十个小弹头，然后从亚音速状态下加速到大约三倍音速的速度。
the warhead separates a few dozen kilometres away and then accelerates from almost the speed of sound to about three times as fast.
在这里，气速对应到一个马赫数之一，指该流速等于当地音速的，特别是天然气。
Here the gas velocity corresponds to a Mach number of one, denoting that the flow velocity is equal to the local speed of sound of the particular gas.
从我的角度看，我想是冲破第三个音速的照片，如果我估计错误，请大家纠正我。
From my point of view it looked like the plane was breaking the sound barrier. If I guessed wrong please correct me.
这些气流的能量远大于想象中这类大小的黑洞所放射的能量，以大于音速的速度吹气泡。
These jets are much more powerful than expected for a black hole of this size, blowing bubbles that expand faster than the speed of sound.
有件事是确定无疑的：除非欧洲人和美国人坐下来谈判，否则解决该争论的速度绝无可能是超音速的。
One thing is certain: unless the Europeans and Americans sit down to negotiate, there will be nothing supersonic about the speed at which this dispute is resolved.
美国国家航空航天局计划进行再一次的11秒超音速试飞，这次会以10倍于音速的速度进行。
The agency has plans for another 11-second hypersonic flight, this time at 10 times the speed of the sound.
湖人期望在与超音速的比赛中获胜，创造新的连胜记录。接下来赛程是开拓者、迈阿密、开拓者。
The Lakers look to snag a new win-streak high tonight at Seattle against the SuperSonics. They then play Portland, Miami and the Trail Blazers again.
换句话说，一旦航母知道被锁定，也就不能规避，而且导弹是超音速的，要用导弹拦截几乎是不可能性的。
In other words, once a carrier knows it is targeted, it can not take evasive maneuvers and because the missile is hypersonic, it is close to impossible to hit with another missile.
伊隆·马斯克的超级高铁创想——加压密封车厢以近于超音速的速度运送乘客——即将见证里程碑式的新突破。
Elon Musk's vision of a Hyperloop transport system that carries passengers in pressurised tubes at near-supersonic speeds is on track to hit a milestone.
其最高时速将达到0.8马赫——即音速的0.8倍，约合每小时600英里，比起下一代民用客机的速度稍逊一筹。
Its top speed would be 0.8 mach-that is, 0.8 times the speed of sound or around 600 miles per hour, slightly slower than the coming generation of airliners.
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。
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.
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。
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。
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.
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