The system has enhanced capabilities to recognize the elemental content of a container which can be used to detect concealed explosive and fissionable materials.

该系统具有识别集装箱的基本内容的增强能力，可用于检测隐藏的爆炸物质和裂变物质。

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The atomic energy agency could be made responsible for the impounding, storage, and protection of the contributed fissionable and other materials.

原子能代理处能够为滤网、储蓄、捐献可裂变物质保护和其他能源负责。

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That happens when fissionable nuclear materials, such as uranium or plutonium, are brought together in sufficient quantities and under the right conditions so that a chain reaction begins.

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