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来源:雅诚德英语网
And then the fuel assemblies are placed into the reactor and the core is operated for about a year to eighteen months before it has to be re-fuelled and fresh fuel has to be put in.
燃料组件会被放置入,反应堆,还有核心会被运作大约一年,到18个月,在它再次燃烧,新的燃料需要加进去。