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1986年4月26日,前苏联(现乌克兰境内)的切尔诺贝利核电站4号机组发生爆炸,强辐射物质倾泻而出,5万多平方公里的土地受到污染,320多万人遭到核辐射的侵害。
On April 26, 1986, Unit 4 of the Chernobyl nuclear power plant in the former Soviet Union (now inside Ukraine) exploded and strong radioactive material was poured out. Over 50,000 square kilometers of land were polluted and more than 3.2 million people were affected Nuclear radiation violations.