The safe room is an interior room of the home that has been reinforced and tested and certified to withstand high wind and debris impact of the type that we've just seen happening in Moore, Oklahoma.

安全屋是加固的内室房间，经过测试和认证，可以抵抗强风和碎片，就像我们刚才在俄克拉荷马州摩尔看到的那样。

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Compared to the cost of losing a satellite or a shuttle to space debris impact, "this looks like a bargain, " says Dr. Campbell, who works at NASA's Marshall Space Flight Center in Huntsville, Ala.

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One can imagine how 40 tons of neighboring debris might impact his bottom line and hinder other potential business investment in the area.

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The clay layer that formed from fallout of the impact debris was globally distributed.

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