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。
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。
There, half the reactor core 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.
在那次事故中，有一半核反应堆芯在事故发生后的两小时内便融化了，直到工作人员将误关的应急冷却系统开关重新打开，反应堆芯才停止了融化。
The physical parameters of the reactor core are calculated by method of the two-group theory.
应用双群理论计算了反应堆堆芯物理常数。
The physical parameters of the reactor core are calculated by method of the two-group theory.
应用双群理论计算了反应堆堆芯物理常数。
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