The reactors at the Fukushima Daiichi plant are boiling - water reactors.
福岛第一核电站的反应堆都是沸水反应堆。
Particularly useful to boiling-water reactors is a system that is steam driven.
对沸水堆特别有用的是一个由蒸汽驱动的系统。
Now let me go over boiling water reactors and then we'll do pressurised water reactors.
现在，我们回顾一下沸水式反应堆，我们会做一个压水式反应堆。
The two Russian-built VVER-91 pressurised water reactors each has outputs of 1, 060MW.
这两个俄制VVER-91压水核反应堆能够发电1060兆瓦。
That moment never came, despite total spending of more than $2 billion on fuel oil and the aborted light-water reactors.
尽管已经花费总计20多亿美元的燃油又将一座废弃的轻水反应堆扔在那里，但是朝方兑现诺言的那一刻也永远不会来临。
SNUPPS, or Standardized Nuclear Unit Power Plant System, is one of a series of pressurized-water reactors built by Westinghouse.
标准化核电站系统(简称SNUPPS)是西屋电气公司建造的众多压水反应堆之一。
Richard T. Lahey Jr., G.E.’s former head of safety research for the type of boiling-water reactors installed at Daiichi, said restoring the emergency cooling pumps was crucial.
RichardT.LaheyJr是通用电力安全调研部前任部长，负责福岛第一核电站的沸水反应器。 他认为重建应急冷却泵十分关键。
"Fukushima marked the death of conventional light-water reactors," says Kirk Sorensen, founder of Flibe Energy, a highly regarded nuclear technology startup based in Huntsville, Alabama.
FlibeEnergy创始人科克·索伦森称：“福岛事故标志着传统轻水反应堆的消亡。”Flibe Energy位于美国阿拉巴马州亨茨维尔，是一家备受推崇的核技术初创企业。
The estimates were gathered by Richard Lahey, the former chief of safety research for boiling water reactors at General Electric, which installed the reactors at the Japanese power plant.
这些数据由RichardLahey进行估算，他是GE冷凝水反应器的首席安全研究员，GE安装了日本电厂的这些装置。
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".
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。
Water has also been desalinated using nuclear reactors in India and Japan.
印度和日本也使用核反应堆淡化海水。
In the types of reactors involved, water is used to cool the reactor core and produce steam to turn the turbines that make electricity.
在这种类型的反应堆中是用水来冷却反应堆芯棒的，反应堆发生蒸汽，转动汽轮机发电。
The temperature of the three reactors with damaged central cores still fluctuates and water systems for the spent-fuel pools are jury-rigged at best.
三座堆芯中心受损的反应堆的温度仍起伏不定，而乏燃料池供水系统也顶多只是被应急修复而已。
Some of those battling flames and spraying water at reactors at Daiichi are members of Japan's Self-Defense Force, police officers or firefighters.
还有一些与第一核电站反应堆火灾搏斗的人是日本自卫队的队员，警察或者是消防员。
It would have been much easier to have used seawater earlier because the temperature and pressure of the reactors were lower then, making it easier to push water into them.
如果早些开始注水流程，反应器的温度和压强水平较低，注水也相对容易。
Reports suggest there was a partial meltdown and that the zircalloy rods began to "bubble". This was why the reactors were flooded with sea water.
报告表明有一部分溶毁并且锆棒气泡化，因为反应堆被海水淹没。
At that point, the fuel at the core of the reactors would have dropped in temperature and no longer be capable of boiling the surrounding water.
到那时，反应堆堆芯的燃料温度会下降，且也不会导致周围水温升高。
During this period, the company expects to bring the water temperature in the reactors fully under control.
这段时间，公司将完全控制反应堆的水温。
At the Fukushima Daiichi nuclear plant, water cannons spray jets of water to cool overheating nuclear reactors. But scientists say that's like using a squirt gun to put out a forest fire.
在福岛核电站，高压水炮喷洒着水柱，给过热的核反应堆降温。
Such reprocessing-or even fast-neutron reactors that don't use water to moderate fission and can potentially create more fuel than they consume-remain a distant prospect.
这种再处理工艺，或甚至快速中子反应堆不使用水来缓和裂变，及比他们消耗量创造更多的燃料，仍是一个遥远的前景。
NRC Chairman Greg Jaczko said Japan has asked for additional types of equipment that will help provide water and keep the reactors cool.
Jaczko说，日本方面已经要求额外的器械装备帮助供水并保持反应堆冷却。
It accumulates in the cooling water of nuclear reactors and is often vented in small amounts to the environment.
氚会在核反应堆的冷却水中积聚下来，通常会被少量地排放到自然界中。
Disaster teams managed to get a power line onto the site in an effort to reactivate crucial water pumps to cool overheating reactors and prevent a calamitous meltdown.
事故处理小组们努力将一根电力线导入站点使电站内重要的水泵恢复运行，让它冷却过热的反应堆，阻止核反应堆的爆炸。
It appears that they have finally succeeded in reconnecting a power line to one of the reactors, which will help pump much-needed cooling water.
看来他们终于成功了——将一条外部电源与其中一个机组的电力系统相连接，这将有助于输送所急需的冷却剂。
It appears that they have finally succeeded in reconnecting a power line to one of the reactors, which will help pump much-needed cooling water.
看来他们终于成功了——将一条外部电源与其中一个机组的电力系统相连接，这将有助于输送所急需的冷却剂。
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