They are fuelled by uranium, which is relatively abundant andis available from many sources, including reassuringly stable places such asCanada and Australia.

它们使用铀作为燃料，令人欣慰的是，铀资源相对丰富，来源也很多，包括一些相对稳定的地方，如加拿大和澳大利亚。

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There are various advantages cited for this type of reactor, including the claim that it can be stopped easily if things get out of hand, and that it produces less long-lived nuclear waste than the uranium-fuelled fission reactors that are currently in common use.

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