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摘要

A In a word: precedent. It's certainly possible to base nuclear reactors around thorium, as opposed to the most commonly used element, uranium. And thorium reactors likely would be somewhat safer because of thorium-based fuel's greater stability versus uranium-based fuel, with the added benefit of not producing as much nuclear bomb fuel. Of course, they're still not perfect. Even though a conventional meltdown would be unlikely, thorium still produces harmful radiation that needs to be contained, and something could always go wrong.