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。
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。
These designs reduce the problems of weapons-grade material being produced and sold illicitly .
这些设计也减少了制造终极武器的材料和非法利用核能的问题。
These designs reduce the problems of weapons-grade material being produced and sold illicitly .
这些设计也减少了制造终极武器的材料和非法利用核能的问题。
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