Fearful that India's nuclear Arsenal will overwhelm its own, Pakistan continues to block negotiations on a treaty that would freeze all production of weapons-grade material.

巴基斯坦担心印度的核武库会压过其核武库，所以继续阻挠关于冻结所有武器级材料生产的条约的谈判。

youdao

There were no mandatory standards adopted for securing nuclear facilities. And no universal commitment to stop churning out more weapons-grade material.

没有保障核设备安全的强制标准，也没有停止生产更多武器级核材料的全面承诺。

youdao

It says U.S.-sponsored security upgrades have been completed for 75% of the buildings that contain weapons-grade material and for about 65% of Russia's nuclear warhead sites.

据称由美国发起的安全提升已经摧毁百分之七十五的包含武器原料的建筑物和百分之六十五的俄罗斯核弹头基地。

youdao

"Last November,Iran announced that it would build In February, Iran said that it would begin to enrich uranium to nearly 20 percent-moving,closer to weapons-grade material."

VOA: standard.2010.06.09

The U.S.government says Tehran is trying to make weapons-grade nuclear material.

VOA: standard.2010.06.29

It appears to be nearing the point at which weapons-grade material, if not actual atomic or nuclear weapons, will be in the hands of one of the world's most dangerous regimes.

CENTERFORSECURITYPOLICY: Mortal threat

When enriched to a high degree, uranium can be used for weapons-grade material.

CNN: Defiant North Korea 'to weaponize plutonium'

It is also a problem of getting weapons grade radioactive material.

CNN: Sebastian Junger: The bin Laden tape and the war in Afghanistan