Helicopters have dumped approximately 30 tons of seawater on the No. 3 reactor building to attempt to cool it down, but officials are still trying to figure out if it had any effect.
为了使三号反应堆冷却，直升机已经在那里倾泻了30多吨海水，但是官方仍然无法知道此方法是否有效。
Steam generated by the heat of a cooling down reactor has enough force to run a turbine, which then runs a pump that provides coolant to the core.
由冷却的反应堆产生的蒸汽足够运行一台涡轮机，然后该涡轮机运行一台水泵为反应堆提供冷却剂。
To shut down a reactor, safety valves are opened to release the steam and water is used to then to cool down the reactor core.
关闭核反应堆时，需要打开安全阀门释放蒸气，然后用水冷却堆心。
The reactor itself had shut down automatically by the safety system.
反应堆被安全系统自动关闭。
Because the reactor had been shut down 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.
因为反应器已经关闭了很长时间，残余热量下降到了一个显著的低水平，因此工厂内部的压力已经稳定，不再需要继续排气。
The response amplitude also relates to the impact direction. When the reactor moved down rapidly, the response displacement of the control rod is larger.
冲击响应幅值还与冲击方向有关，当冲击位移向下时，控制棒的响应位移相对比较大。
A newly down flow reactor with new ways of feed atomization and oil catalyst contact was developed according to the characteristic of ultra short contact time catalytic cracking process.
根据超短接触时间催化裂化工艺的特点，开发了具有新型原料雾化和剂、油接触方式的下行式反应器。
Meanwhile in May 2009, the Chalk River reactor started leaking heavy water and was again shut down.
也是在2009年5月，乔克里弗反应堆开始出现重水泄露现象，被迫再次关闭。
The problem at Fukushima was not the explosion of a working nuclear reactor (all its reactors had been automatically shut down).
福岛核电站发生事故时，所有的核反应堆都已经自动关闭，也就是说，发生爆炸的并不是正在运作的核反应堆。
In these situations, the captain of the vessel would be forced to shut down the reactor.
在这种情况下，飞船船长只能被迫关闭反应堆。
The Tepco reactor has been shut down so no nuclear reaction is taking place.
东京电力公司的这座反应堆已经关闭，因此没有任何正在进行的核子反应。
Florida's largest utility says today's widespread power outages were caused when it shut down a nuclear reactor south of Miami.
佛罗里达最大的公用事业公司称今天大范围的停电是由于位于迈阿密南部的一个核反应堆关闭所致。
In the U. S., reactors shut down for refueling typically retain most of their fuel in the thick steel reactor pressure vessel that provides much more protection against a radioactive release.
在美国，如果反应堆因补充燃料而关闭，一般来说，在厚重的钢质反应堆压力容器内仍会存有大多数燃料，因为这个容器可提供更多保护，防止辐射泄漏。
It was carrying no nuclear weapons and the reactor that powers its engines has been shut down.
潜艇上并未装载核子武器，且供应引擎动力的核子反应器也已停止运转。
Invented by scientists at the Swiss Federal Institute of Technology Lausanne, this novel reactor allows the synthesis of extremely uniform particle size powders down to nanometer size.
该技术由瑞士联邦洛桑技术学院的科学家发明，这种新颖的反应器可合成尺寸十分均匀的粉末颗粒，合成颗粒尺寸可达到纳米级。
Glycogen storage slowed down the accumulation of VFA and the producing of hydrogen, therefore reduced the hydrogen partial pressure of the reactor.
糖原的储存减缓了间歇条件下发酵产酸过程VFA的积累和产氢速率，从而使得体系的氢分压降低。
Circulating and flowing-down tube of anolyte and that of catholyte are installed outside the reactor components.
阳极电解液和阴极电解液的循环和下流管安装在反应器组件的外部。
How long does it take to cool down a reactor?
冷却一座核反应堆需要多久？
Italy had shut down its last reactor in 1990.
意大利在1990年关闭了最后一座反应堆。
WHEN news spread in December 2007 that an ageing nuclear reactor in Canada might shut down for much longer than its scheduled two weeks, the world caught its breath.
2007年12月，加拿大一所核反应堆传来的消息让全世界为之屏息。这座设备老化的反应堆原定两周时间内关闭，而据新的消息透露，关闭的进程可能要拖延更长时间。
Heavy water is used as a moderator in nuclear power plants, slowing down the fast neutrons so that they can react with the fuel in the reactor.
重水可用作核电厂的减速剂，减缓快速运动的中子以使它们能和反应炉的燃料一起反应。
Every currently operating light-water reactor, if deprived of power and cooling water, can melt down.
世界上所有的轻水反应堆，一旦电力和冷却水供应不足，都有可能发生反应堆事故。
At Three Mile Island the safeguards caught the breakdown and the reactor was safely shut down with no loss of human life.
三里岛的安全防护设施及时对故障作出反应，使反应堆得以安全关闭，未造成任何人员伤亡。
Production practice linked, examination and repair steps such as shut-down, reactor cleaning, pressure's examination, cool vacuum etc in production process of polyester are discussed.
结合生产实践，介绍了聚酯生产过程中各检修步骤，其中包括停车、反应釜煮洗、系统冷却降温、设备检修及工艺改造、压力试验等。
By noon, the owners had shut down both the damaged and undamaged cooling towers and had cut the plant's electricity output in half to avoid any harm to the reactor.
电厂的管理者已经在正午之前，要求关闭了所有的冷却塔(包括损坏的和未损坏的)，并将电厂的电力供应下调一半，以此避免对核反应堆造成任何损害。
The experiment result showed, the form-film time of up-flow BAF was lower than down-flow BAF, and the kind of microbe in the reactor was abundant.
试验结果表明，上流式曝气生物滤池的挂膜时间略少于下流式曝气生物滤池，两种运行方式的生物相丰富；
The experiment result showed, the form-film time of up-flow BAF was lower than down-flow BAF, and the kind of microbe in the reactor was abundant.
试验结果表明，上流式曝气生物滤池的挂膜时间略少于下流式曝气生物滤池，两种运行方式的生物相丰富；
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