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Shifting from big nuclear devices that burst at the earth's surface to smaller ones that detonate below ground could indeed reduce the radioactive fallout released by a factor of about 20—but it would by no means make the smaller munitions “clean. |
中文意思: 把在地表引爆的大型核弹换成在地下引爆的小型核弹,或许真的能减少20%的放射性落尘,但无论如何都不能说小型核弹「乾净」。 |
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