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主题:【讨论】日本核灾难最新更新 -- 井底望天

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家园 辐射量创新高啊。。。。都分不出来是哪个的问题了

[9:47 p.m. ET Thursday, 10:47 a.m. Friday in Tokyo] A radiation reading of 20 millisieverts per hour has been recorded at a key annex building at the Fukushima Daiichi nuclear power plant – the highest yet recorded there – an official from the Tokyo Electric Power Company said Friday morning. In comparison, a typical chest X-ray exposes a person to about .02 millisieverts of radiation. A typical dose of background radiation in developed countries is about 3 millisieverts over an entire year

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