Nuclear experts say that radiation from the core of a reactor can split water molecules in two, releasing hydrogen.
原子能专家说,核反应堆堆芯的放射线能够把水分子一分为二从而产生氢气。
2
The active core of a nuclear reactor splits atoms in two to produce bursts of energy and, as a byproduct, large masses of highly radioactive particles.
核反应堆的活动区将原子一分为二,从中产生大量的能量,同时作为副产品,会产生大量的发射性很高的物质。
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There, half the reactorcore melted in the first two hours of the accident. The melting stopped when an operator turned on emergency cooling, which had mistakenly been turned off.