fissionable nuclear material
可裂变的核材料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Second, although Russian strategic warheads are well-guarded, large numbers of small tactical nuclear warheads and huge amounts of fissionable material usable for bombs are not, and these create a serious stockpile security problem.
CENTERFORSECURITYPOLICY: Center For Security Policy
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