Britain has more than 100 tonnes of separated plutonium, the largest such stockpile in the world.
英国拥有世界上最大的分离钚储备，大约100公吨。
In particular, strengthening the control on " weapon-usable" fissile materials-highly enriched uranium (HEU) and separated plutonium is essential.
加强控制武器用裂变材料——高浓铀（HEU）和分离钚是极为本质的。
The IAEA assesses these things using a measure of militarily "significant quantity" : the amount of highly enriched uranium (25kg) or separated plutonium (8kg) it would take to make a weapon.
IAEA根据军事上“相当数量(significant quantity)”的标准估计：25kg高浓缩铀或者8 kg分离钚就可以制造一件核武器。
The IAEA assesses these things using a measure of militarily "significant quantity" : the amount of highly enriched uranium (25kg) or separated plutonium (8kg) it would take to make a weapon.
IAEA根据军事上“相当数量(significant quantity)”的标准估计：25kg高浓缩铀或者8 kg分离钚就可以制造一件核武器。
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