福岛第一核电站使用的反应堆是由通用电气设计制造，称之为马克一号沸水反应堆。 该反应堆长期以来多认为安全壳系统薄弱。
The type of reactors used at the Fukushima plant — made by the General Electric Company, they are known as Mark 1 boiling-water reactors — have long been known to have weak containment systems.
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。
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.
氢气在第二层安全壳内聚集，最终爆炸，将1号和3号的顶盖炸飞，损毁了2号的冷却系统。
Hydrogen collected in the secondary containment buildings, where it exploded, blowing the tops off units 1 and 3, and damaging the cooling system of unit 2.
在进入安全壳之后，工作人员将检查管道，阀门，以及机械装置，查看那些需要整修，以使反应堆的自冷系统能恢复使用。
Once inside, staff will be checking pipes, valves and machinery to see what needs to be repaired so the reactor's self-cooling system can be put back in use.
安全壳喷淋系统内有两台喷淋泵，喷嘴，喷淋添加箱，许多安全壳隔离阀和相关的管道仪表等。
The containment spray system consists of two pumps, spray ring headers, a spray additive tank, a number of motor operated isolation valves and all necessary piping, instruments etc.
实验结果可用于合理选择压水堆安全壳喷淋系统参数。
The experimental results are useful for rational selecting parameters of containment spray system of PWR.
用具有反照率近似的蒙特卡罗方法编制的RSCAM程序系统计算反应堆堆腔内及安全壳操作大厅中的中子辐射场。
RSCAM program system, using Monte Carlo method with albedo approach, is used to calculate streaming neutron radiation field in reactor cavity and containment operating hall.
非能动安全壳冷却系统(PCCS)水分配装置是PCCS的重要组成部分，也是系统功能能否实现的关键。
The water distribution device is an important part of the Passive Containment Cooling System (PCCS), which is a key to carry out the function of the PCCS.
非能动安全壳冷却系统(PCCS)水分配装置是PCCS的重要组成部分，也是系统功能能否实现的关键。
The water distribution device is an important part of the Passive Containment Cooling System (PCCS), which is a key to carry out the function of the PCCS.
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