In order to control the nuclearchain reaction, the reactor operators use control rods.
为了控制原子能的连锁反应,反应器的操作人员用到了控制棒。
2
A fission reactor works by maintaining a controlled nuclearchain reaction.
一座裂变反应堆需要在可控的核裂变中运转。
3
Japan itself had a Level 4 accident in 1999, when three workers preparing fuel for a reactor at a Japan Nuclear Fuel Conversion plant triggered a nuclear chain reaction, called a criticality.