Moreover, no reduction in nuclear weapons could be considered complete until all the fissile material in the warheads was irreversibly converted and placed under IAEA safeguards.
此外，除非核弹头中的裂变材料已无法扭转地得到转变，并置于原子能机构的保障之下，否则，就无法认为已充分完成核武器的裁减工作。