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单词 Chernobyl
释义
Chernobyl

Chemical Engineering
  • A major nuclear accident that occurred on 26 April 1986 at the Ukrainian nuclear power plant. Following a power output surge, an emergency shutdown was attempted. With an even greater power output surge, the reactor vessel ruptured. A series of explosions then followed, destroying the reactor. With the graphite moderator then exposed, a fire began, with the release of radioactive material into the environment. Many people were killed as the result of exposure to ionizing radiation, and many more were to suffer cancer-related deaths. The disaster had far-reaching implications for nuclear power and safety in the nuclear industry.


World History
  • A nuclear power-station near Kiev in Ukraine, the site in 1986 of the worst nuclear accident in the world to date. 31 people died trying to fight subsequent fires, and many more received radiation burns or suffered from associated diseases. The accident was the result of unauthorized experiments by the operators of one of the four reactors, in which safety systems were deliberately circumvented in order to learn more about the plant’s operation. Fallout from the explosions, containing the radioactive isotope caesium-137, affected large areas of Europe. In particular, livestock in high-rainfall areas received unacceptable doses of radiation. In the mid-1990s large areas of land in Ukraine, Belarus, and south-west Russia were still contaminated and high levels of cancer (especially leukaemia in children) were reported. The power-station was closed when its last nuclear reactor was shut down in 2000.


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