在冷却系统失灵的情况下，核燃料棒周围的水开始蒸发。
With the cooling system down, the water that surrounds the nuclear fuel rods began to burn off.
目前其主要问题就是缺乏足够的水来冷却废弃的核燃料棒。
The main problem was the lack of water to cool spent fuel rods.
星期六，两国的专家们把装有铀的核燃料棒加载进核反应堆。
On Saturday, specialists from both countries loaded uranium packed fuel rods into the reactor.
据推测放射性钚元素来自受损核反应堆的核燃料棒.
The Plutonium is thought to have come from some of the plant's fuel rods found in each of the troubled reactors.
最令人担忧的是存放在3号和4号反应堆的用过的核燃料棒。
Of greatest concern are the spent fuel rods stored at reactor Nos. 3 and 4.
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。
But the cooling water has not been restored to its original level, it was judged nuclear fuel rods are still exposed.
根据条约，俄罗斯为布什尔提供核燃料，同时回收废核燃料棒。
Under the pact, Russia will supply the fuel for Bushehr and then take back the spent fuel rods.
随着水位下降，核燃料棒有可能暴露在空气中，从而增加了反应堆融化的可能性。
As water levels dipped, fuel rods were likely exposed to air, increasing the chances of melting-and of a catastrophic meltdown.
日本福岛核电站问题的一大部分是那些保存在电站存储池里高放射性的烧过的核燃料棒。
A big part of the problem at Japan's Fukushima Daiichi power station are the highly radioactive spent fuel rods kept in storage pools at the plant.
日本福岛二号核反应堆冷却系统破坏后，核燃料棒将可用的水煮沸，并露出水面数小时。
When the cooling system failed at Japan's Fukushima Dai-Ichi reactor Number 2, the fuel rods boiled through the available water and were for a period of hours exposed to the air.
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。
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.
日本的一个核电站发生火灾后，可能已经烧掉几个核燃料棒，日本工人们正艰难地掌控着它。
Japanese workers are scrambling to control a nuclear plant after a fire that may have burned several fuel rods.
日本技术人员已给六座反应堆接通供电线，并启动了一个水泵来冷却过热的核燃料棒。
Japanese technicians have attached power cables to all six reactors and started a pump at one to cool overheating nuclear fuel rods.
一旦反应堆的控制杆置于核燃料棒的中间了，我们应该怎么将裂变减慢到我们可控制的程度呢？
Once the reactor's control rods are between sections of fuel rods, how is fission slowed to where it is controllable?
实际上，一个用尽的核燃料棒中95%的是天然铀，因此我们可以把它重新埋入地下，就像刚发现那样。
Indeed, ninety-five percent of a spent nuclear fuel rod is natural uranium, and so it can be put right back in the ground, just as it was found.
电站的三个反应堆都已出现部分熔化现象，电站方面还承认，核燃料棒可能都已熔化并且毁坏。
The power company said a complete meltdown is possible at the plant, where three reactor cores are believed to have partially melted.
有关官员说，他们仍然希望解决的电源线至少需要两个反应堆重新启动冷却过热的核燃料棒水泵。
Officials say they still hope to fix a power cable to at least two reactors to restart water pumps needed to cool overheating nuclear fuel rods.
专家说，东电公司肯定已经知道水将会被红热的核燃料棒加热至沸腾并变成蒸汽，这就增加了它们暴露在空气中的可能。
TEPCO must have known, experts say, that the water was boiling and being turned into steam by the red-hot fuel rods, thus increasing the exposure of those rods to the air.
伊朗星期三表示，伊朗安装了用于铀浓缩的新一代离心机，并在德黑兰的研究反应堆中首次安装了国产核燃料棒。
Iran said Wednesday it had installed a new generation of centrifuges to enrich uranium, and for the first time loaded domestically produced nuclear fuel into Tehran's research reactor.
上周五发生的大规模地震和海啸使得核电站冷却系统瘫痪，核燃料棒开始出现过热现象，工程师们一直在奋勇处理核电站突发事件。
Engineers have been battling a nuclear emergency since a massive earthquake and tsunami knocked out cooling systems last Friday and fuel rods began overheating.
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。
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.
由于锆4合金具有低的中子吸收截面，良好的抗腐蚀能力、高强度以及延展性好的特点，被广泛用于压水堆作为核燃料棒的包壳材料。
Zircaloy - 4 is generally used as fuel tubes in pressurized water reactors because of it " s low neutron absorption cross - section, excellent corrosion resistance, good strength and ductility".
但他们并没有阻止自然地发生在来自核燃料和裂变产物的燃料棒上的裂变。
But they do not stop spontaneous fissions in fuel rods from fuel and fission products.
核燃料的形式是在硬合金包裹下的燃料棒；并且这些燃料棒放在水中，外面还有一层钢压力容器。
The nuclear fuel is encased in hard alloys to construct fuel rods; the reactor core that these rods make up, and the water it sits in, are contained within a steel pressure vessel.
如果要解答这个问题就要充分考虑有多少核燃料，包括反应堆周围的燃料棒加上7个贮藏池里的乏燃料。
The answer must take into account fuel rods held in standby in the reactors plus used fuel in the seven storage pools-one co-located with each reactor and a central holding facility.
核燃料组件是由圆柱状的二氧化铀芯块做成的燃料棒，然后按照一定顺序组装起来。
Fuel assembly is a cylindrical pellets made of uranium dioxide fuel rods, and then assembled according to a certain order.
核燃料组件是由圆柱状的二氧化铀芯块做成的燃料棒，然后按照一定顺序组装起来。
Fuel assembly is a cylindrical pellets made of uranium dioxide fuel rods, and then assembled according to a certain order.
应用推荐