... grade petrochemical material 塑胶副牌原料 weapon grade nuclear material 用于军事目的核材料 off-grade petrochemical material 塑胶副牌原料 ...
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这被视为旨在确保越南的核材料不会被转而用于军事目的。
This is seen as insuring Vietnam's nuclear materials aren't diverted for military purposes.
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