North Korea has the ability domestically to produce the engines that power its ballistic missiles, US intelligence officials have said, raising new concerns about the technological sophistication of the reclusive Asian nation’s weapons programmes.
美国情报官员表示朝鲜有能力在国内制造弹道导弹发动机，这一评估引发了对朝鲜武器计划技术先进程度的新担忧。
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