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1.reactor n. [化工] 反应器；[核] 反应堆；起反应的人
The fuel was enriched with uranium 235 for the nuclear reactor.
核反应堆的燃料被铀235浓缩。
2.hydrogen n. [化学] 氢
Water contains hydrogen and oxygen.
水含有氢和氧。
3.debris n. 碎片，残骸
The sea tided the debris ashore.
潮水将碎片冲上海滩。
4.radioactive adj. [核] 放射性的；有辐射的
Madame Curie was the physicist with expertise in chemistry that, in 1898, discovered the radioactive substances of radium and polonium in Paris, France.
居里夫人是一位具有化学专门知识的物理学家。 1898年，她在法国巴黎发现了放射性物质的镭和钋。
