Once the reactor has shutdown, there remains "decay heat" from traces of other radioactive isotopes.
一旦反应堆关闭,它仍热存在有来自其他放射性同位素踪迹的衰变热。
2
The control rods are also used to shut the reactor down from 100% power to about 7% power (residual or decay heat).
它也用来关闭反应器,可以从100%的动力降到7%动力(残留的延迟的热量造成)。
3
Because the reactor had been shutdown a long time ago, the decay heat had decreased to a significantly lower level, so the pressure in the plant stabilized, and venting was no longer required.