相反，许多镜头必须结合使用，其中每个镜头分别负责在截止位置拦截部分光线。

Instead, many lenses must be used in combination, where each lens does its part to have the light end up where it is supposed to.

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废弃区被一条仅有1公里(0.6英里)多的挡水坝拦截，见图中左下角的直线位置。

The spoil is held behind a retaining dam, just more than 1 kilometer (0.6 miles) long, visible as a straight line at image lower left.

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为了完全化解导弹威胁，大气层外拦截器(EKV)将会在弹头的“最佳有效点”位置进行撞击。 “最佳有效点”就在弹头有效载荷几厘米宽的区域范围内。

Toachieve complete threat neutralization, the EKV will collide with the warhead’s“sweet spot, ” an area just a few centimeters wide where the missile’s payloadis located.

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