It is also actively involved in strengthening measures to prevent the theft of nuclear materials.

原子能机构还积极参与加强防止盗窃核材料的措施.

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Yu said participating in PSI will help control North Korea's development of dangerous nuclear materials.

柳明恒表示参加这个倡议有助于控制北朝鲜开发危险核原料.

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