reactor-grade plutonium

基本解释

In a major and welcomed development, Russia announced that it will close its last weapons-grade plutonium production reactor.
一项重大、颇受欢迎的进展是俄罗斯宣布将关闭最后一座武器级钚生产反应堆。
S. legislatures. Plus, the program only works for uranium weapons, as weapons-grade plutonium (the other fissile material used in bombs) can't be as cheaply downblended into reactor fuel.
此外，这一计划仅对铀军备产生作用，而武器级钚（另一种用于军备的核裂变原料）无法如此方便地转换为反应堆核燃料。
Plus, the program only works for uranium weapons, as weapons-grade plutonium (the other fissile material used in bombs) can't be as cheaply downblended into reactor fuel.
此外，这一计划仅对铀军备产生作用，而武器级钚（另一种用于军备的核裂变原料）无法如此方便地转换为反应堆核燃料。

In a major and welcomed development, Russia announced that it will close its last weapons-grade plutonium production reactor.
WHITEHOUSE: Nuclear Security Summit: Presidential Press Conference