强度最大处位于飞机正下方，随着离飞行路线的横向距离的增大强度不断减小，直到因为冲击波在地面的折射而消失。

Maximum intensity is directly beneath the aircraft, and decreases as the lateral distance from the flight path increases until it ceases to exist because the shock waves refract away from the ground.

youdao

而迄今为止，美国却没有按照既定路线走向衰落，其承受冲击的结果要好于预期。

But America has not so far followed the script, weathering the storms better than it expected.

youdao