The earthquake last month crippled the Fukushima plant, leading to leaks of radioactive steam and water.

上个月的地震导致福岛核电站受损，引发放射性蒸汽和水的泄漏。

The fuel could also burn through the vesseland start forcing radioactive steam continuously into the sky and spreading it around.

燃料也能烧穿压力容器，并开始使放射性蒸汽不断散入空中，在它周围蔓延。

Lacking electricity to pump water needed to cool the atomic core, engineers vented radioactive steam into the atmosphere to release pressure.

由于没有电力将需要的水泵出以冷却原子核，工程师们将放射性的蒸汽排到空气中以减轻压力。

Radioactive steam will still bubble up to the top of the water in the containment vessel, but will be harder to vent as the systems for doing so in an orderly manner are now underwater.

在安全壳内，放射性蒸汽将会持续形成气泡并上升到水面顶部，但是放压工作却更困难了，因为系统在正常方式下的放压操作现在却要在水下进行。

The control rods, in turn, react to the superheated steam and begin to release hydrogen and radioactive gases. These are also released through the PORV.

控制棒接连与过热蒸汽产生反应，释放出氢气以及放射性气体，这些气体也通过减压阀释放。

A nuclear reactor produces electricity by heating up the radioactive material in its core, which then heats water to produce steam. That steam is used to turn turbines that produce electricity.

核反应堆通过加热堆心的放射性物质产生电力，然后用这些电力加热水产生蒸汽，再用蒸汽驱动涡轮发电机发电。

While the danger of a total meltdown at the reactor appears to be very low, radioactive materials have been detected leaking into the atmosphere along with steam from the plant.

反应堆彻底熔化的危险性看起来很低，可是放射性物质已经被探测到随发电站出来的水蒸气一同泄露到大气中。

To protect the core, and prevent a bigger problem, authorities had to vent some of that steam into the atmosphere, which means venting some of the radioactive particles along with them.

为了保护核心，阻止更大的问题，专家们必须放出一些水蒸气至大气中，这就意味着随之放出一些有辐射性的微粒。

In reactor 1, and later in reactor 3, steam contaminated with some radioactive elements was allowed out of the pressure vessel and into the larger containment vessel that surrounds it.

在一号反应堆以及随后的三号反应堆中，受到辐射污染的蒸气已经从压力窗口中释放出来，进入了外层的容器。

At this time, some of the radioactive fission products (cesium, iodine, etc.) started to mix with the water and steam.

这时候，一些放射性产物(铯、碘等)开始混入水和水蒸气中。

The radioactive level of the online-detection main steam system is a key measurement to improve the utility rate of turbine system of the nuclear power.

在线监测主蒸汽系统的放射水平是提高船用核动力和气轮机系统的可用率和运行重要措施之一。