在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质。
In a hole in the center of this system is placed a subcritical sphere of fissionable material.
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。
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。
The atomic energy agency could be made responsible for the impounding, storage, and protection of the contributed fissionable and other materials.
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