A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
音爆是当飞机或其它类型的飞行器以超音速飞过头顶时，地面上的人听到的类似雷声的噪音。
The lateral spreading of the sonic boom depends only upon altitude, speed and the atmosphere -- and is independent of the vehicle's shape, size, and weight.
音爆的横向伸展取决于高度、速度和大气，而跟飞行器的形状、大小和重量无关。
A sonic boom is the loud crash and shaking that happens when a jet plane goes faster than the speed of sound.
声爆是当喷气式飞机超音速行驶时产生的巨大碰撞和摇动声。
In this case, the 33 megajoules launched the shot 5,500 feet per second, exceeding the speed of sound and releasing a sonic boom.
如若这样，那么3千3百万焦耳发射出的炮弹速度高达每秒5500英尺，这一速度超越了音速，会产生音爆。
In this case, the 33 megajoules launched the shot 5, 500 feet per second, exceeding the speed of sound and releasing a sonic boom.
如若这样，那么3千3百万焦耳发射出的炮弹速度高达每秒5500英尺，这一速度超越了音速，会产生音爆。
The main principle is introduced, and the relationship between speed of sonic wave and media temperature is deduced. The great merits and existing questions of acoustic pyrometry are shown.
介绍了声学测温的基本原理，推导了声波传播速度与介质温度的关系式，阐述了声学测温的巨大优势和存在问题。
The results showed that the extrusion speed had effects on the irregularity of cross section, surface morphology, profile degree, sonic orientation and compactness of PAN fiber.
结果表明：喷丝速度对PAN纤维截面的规整性、表面形貌、异形度、声速取向和致密性等均会产生影响。
If you encounter a sonic boom, is that evidence that an aircraft of some sort exceeded the speed of sound moments ago to become supersonic?
如果你听到了音震，是否可以说明刚刚有飞行器或类似于飞行器的物体以音速飞行从而产生了音震？
The only sonic toothbrush with a slim, angled neck, contour-fit bristles and ultra-high bristle speed for greater plaque removal in hard-to-reach areas.
唯一的角度颈部声波牙刷苗条，轮廓，适合猪鬃和超高鬃地区高速到达的大斑去除硬的。
The testing of transmission speed of sonic wave in the gas-liquid two-phase flow indicates that Wood formula can be used to calculate the transmission speed of sonic wave in the two-phase flow.
通过声波在气液两相流中传播速度试验证明，武德近似公式可以用来计算声波在该两相流中的传播速度。
Drilling speed can be predicted through sonic logging.
测井资料可以用来进行钻速的预测。
Advised on hypersonic activities for other divisions, the High Speed Civil Transport, sonic boom, ozone environment, and rocket SSTO concepts.
建议对其他部门，高速民用运输，爆音，臭氧环境，和火箭的单级入轨概念的超音速活动。
Advised on hypersonic activities for other divisions, the High Speed Civil Transport, sonic boom, ozone environment, and rocket SSTO concepts.
建议对其他部门，高速民用运输，爆音，臭氧环境，和火箭的单级入轨概念的超音速活动。
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