法律上，俄国应该确保再浓缩核燃料及后处理核废料被回收或者正确处理，但是仅有一小部分原材料被回收。

Russia is legally required to ensure that the re-enriched fuel and reprocessed waste is returned or properly disposed of, but only a small percentage of the original material gets sent back.

youdao

法律上，俄国应该确保再浓缩核燃料及后处理核废料被回收或者正确处理，但是仅有一小部分原材料被回收。

Russia is legally required to ensure that the re-enriched fuel and reprocessed waste is returned or properly disposed of, but only a small percentage of the original material gets sent back.

youdao