Archers are no longer accurate shooters at long ranges — their art is much decayed.
弓箭手能在远距离精确射击的日子已经过去了——他们的技术下降得很快。
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。
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