Iran has steadfastly insisted that its nuclear program, which includes a power reactor complex being built for it by Russia, is for peaceful purposes only.

伊朗坚决表示，包括一座由俄罗斯建造的核反应堆在内的核项目只是用于和平用途。

youdao

If the model is complex-perhaps a diagram showing a nuclear reactor going critical-the decisions on how to prevent a meltdown will be complex.

如果是复杂模型，例如一张显示着将进入临界状态的核反应堆的图表，则做出如何防止熔炉的决策会很复杂。

youdao

Iran has steadfastly insisted that its nuclear program which includes a power reactor complex being built for it by Russia is for peaceful purposes only.

伊朗坚决表示，包括一座由俄罗斯建造的核反应堆在内的核项目只是用于和平用途。

youdao

North Korea has shut-down and partly dismantled its nuclear reactor complex under terms of the accord.

VOA: standard.2009.03.25

The action means the Yongbyon reactor complex, where the plutonium for North Korea's presumed small arsenal of nuclear weapons was produced, will be without international monitoring for the first time in nearly two years.

VOA: standard.2009.04.15

In 1986, the fourth reactor at the Chernobyl nuclear complex in the Ukraine exploded and caught fire, spreading a radioactive cloud across Europe in the world's worst nuclear disaster.

CNN: Saturday,

One of them, Rear Admiral Simon Lister, is in charge of this complex programme, and as he took me round the cramped corridors, past the nuclear reactor and down into the sweaty machine rooms, he acknowledged this was a prototype and there was always going to be some "teething" issues.

BBC: HMS Astute recovers from shaky start