Even when they are not in use, the nuclear fuel rods remain very hot for weeks or months.
虽然并未在使用中,但核燃料棒仍将保持数周乃至数月的高温。
Tehran has so far rejected a deal that would remove most of its enriched uranium stockpile for a year and replace it with nuclear fuel rods which would be much harder to turn into weapons.
德黑兰此前已经拒绝了一份在一年内将大部分浓缩铀库存替代为核燃料棒的协议。而该协议将会致使伊朗的核武器化进程难度增加。
But the cooling water has not been restored to its original level, it was judged nuclear fuel rods are still exposed.
但冷却水位尚未恢复到原有水平,据判断核燃料棒仍然暴露。
A meltdown occurs when nuclear fuel rods cannot be cooled, thus melting the reactor core and causing a release of radioactivity.
如果核燃料管无法降温,就会发生熔毁,到时反应器的内核也会熔化,从而引起核泄漏。
Reactor 4 had been shut down before the quake for maintenance, but its spent nuclear fuel rods are still stored on the site.
反应堆已被关闭4日之前将维持地震,但它的核废燃料棒仍然在网站上存储。
The nuclear fuel rods in reactors one, two and three melted down due to a failure of the cooling systems, causing damage to their containment structures.
一号、二号和三号反应堆中的核燃料棒因冷却系统失灵而熔毁,导致其围护结构遭受破坏。