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1986年4月26日,乌克兰共和国境内,靠近那个标志着与白俄罗斯和俄罗斯两共和国接界的三国边界点的切尔诺贝利核电厂4号机组发生了灾难性爆炸,将相当大量的放射性物质送入大气。这个事件当时
On 26 April 1986, a catastrophic explosion took place in Unit 4 of the Chernobyl nuclear power plant in the territory of the Republic of Ukraine near the tri-nation border marking the two republics of Belarus and Russia, placing a considerable amount of radioactive material Into the atmosphere. This incident was then