Inside the reactor the large molecules are cracked into smaller molecules.
在反应堆内部大的分子被裂解为较小的分子。
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。
3
Also known as the torus, this large doughnut-shaped structure sits in the centre of the reactor building at a lower level than the reactor.