Uranium is used to fuel nuclear plants.

铀用作核电厂的燃料。

《牛津词典》

They had been interested in thorium — a radioactive element that can fuel nuclear reactors but not be processed into weapons.

他们当时对一种放射性元素钍很感兴趣，这种元素能驱动核反应堆，却不能制造生产成武器。

youdao

Nuclear energy may overtake oil as the main fuel.

核能可能会超过石油成为主要燃料。

《牛津词典》

They had been interested in thorium -- a radioactive element that can fuel nuclear reactors but not be processed into weapons.

VOA: special.2010.10.15

Enriched uranium can be used as fuel for nuclear energy as Iran says or it can be used for nuclear bombs.

VOA: special.2009.09.26

They plan to use the plutonium as fuel for civilian nuclear reactors.

VOA: special.2010.04.17

Investors had been further spooked by an explosive bubble in the uranium market, the metal used to fuel nuclear reactors.

FORBES: Magazine Article

That material has been used to fuel nuclear plants.

FORBES: Nuclear Energy's Limp Causing Uranium Prices to Stumble

And the Russians said, well all right, if the Iranians want to possess the whole, what's called the nuclear fuel cycle, that is, to have a guaranteed stream of nuclear fuel for power plants, which involves enriching uranium, we'll do it in conjunction with Iran, but in Russia.

NPR: Iran's Response to International Pressure over Nukes