Finally, at long ranges, the blast wave becomes essentially a sound wave and its velocity approaches ambient sound velocity.
最后，在很远的距离处，爆震波基本上就变成一种声波，其速度已接近周围的声速。
The Airborne Laser (ABL) is an airborne, megawatt-class laser system with a state-of-the-art atmospheric compensation system to destroy enemy ballistic missiles at long ranges.
美国的ABL系统是一个集成了大气补偿技术的兆瓦级机载激光武器系统，ABL的设计目标是击毁敌方的弹道导弹。
It is a long narrow swale between two ranges of mountains, and the Salinas River winds and twists up the center until it falls at last into Monterey Bay.
那是两条山脉之间的一片狭长的洼地，萨利纳斯河蜿蜒曲折从中间流过，最后注入蒙特雷海湾。
It is a long narrow swale between two ranges of mountains, and the Salinas River winds and twists up the center until it falls at last into Monterey Bay.
那是两条山脉之间的一片狭长的洼地，萨利纳斯河蜿蜒曲折从中间流过，最后注入蒙特雷海湾。
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