所以，还是每个的设计基础事故都会，有一个组件的单失效，那基本上，就是单失效的标准。
So, again each design basis accident has one single failure of a component which basically is the single failure criteria.
在增加额外的冗余层后，理论上，这种灾难性的系统失效的事故发生的可能性就非常非常小了。
By adding extra layers of redundancy, the probability of such a catastrophic failure can — in theory at least — be made too small to worry about.
只有在所有这些系统同时失效时才可能发生事故。
A major accident can only occur if all these systems fail simultaneously.
这起事故是关于美国铱公司12年前发射的一颗卫星，以及俄罗斯1993年发射的已经失效的宇宙卫星。
The incident is thought to have involved a 12-year-old satellite belonging to the US company Iridium and a defunct Russian Cosmos satellite that was put into orbit in 1993.
也会颁布一些信息通知，The, NRC, also, issues, information, notices，如果发生了一个事故，在某个电站或者某种，失效，他们会分发一个通知，对所有的反应堆，命令他们回顾这个特殊的事故，以此来分析它是否适应它们。
NRC if there's an accident at a particular plant or a failure of some kind they will send out a notice to all reactors asking them to review this particular event to see if it applies to them.
可存活性被用来表明一个系统在面对蓄意攻击、故障失效或偶发事故而仍能完成其任务并及时恢复整个服务的能力。
Survivability is the capability of a system to fulfill its mission in the presence of attacks, failures, or accidents, and recover full service in a timely manner.
振动问题一直是引起底部钻具失效的主要原因，对其进行研究能减小钻具损害和各类井下事故的发生。
Research on vibration problems which is the main reason causing bottom drilling tool failure, can reduce drilling tool damage and emergence of underground accidents.
在山区高速公路长大下坡路段，经常出现载重货车因制动失效，而发生交通事故的现象。
The traffic accidents, made by the heavy-duty lorry and due to breaking failure, happen from time to time on the downhill path of mountainous expressway.
着重介绍了油气输送管道失效事故的类型及国内外典型案例。
Mainly introduce failure accident kinds and properties and typical cases in the domestic and at the a-board.
预防钻柱螺纹失效事故发生和提高螺纹连接使用寿命的技术长期以来倍受关注。
The people pay attention on raising the span of the usage of the thread of drill collars and preventing the accident of drill string thread failure.
高温螺栓法兰连接系统的失效不仅会造成巨大的经济损失，而且还会污染环境，甚至酿成重要人员伤亡事故。
The failure of bolted flanged connections will lead to enormous economic loss, serious environment pollution and personal injury accidents at elevated temperature.
主泵为核电厂一回路压力边界，可能由于密封失效发生LOCA事故。
Because of the RCP be in primary circuit pressure boundary, LOCA accidents that may occur due to the seal failure.
经分析得出：事故原因是减压阀阀座和阀盖的连接螺纹接触高度过小，强度不足，导致螺纹连接失效。
The screw joint of the reducer bonnet and body was concluded as the failure position because of its small contact height.
主要介绍了从飞机残骸获取失效信息的方法及注意事项，并就飞行事故的机械失效分析方法做出了进一步的探讨。
Chiefly introduces the methods of getting fault informations from aircraft debris and matters which need attention, and further probes into the analysis methods of mechanical failure in air accident.
通过这些分析方法以利于找出煤矿机械轴承失效真正原因，以便进一步减少机械事故和各种损失。
The real reason of mine machinery bearing lose efficacy by these analytical methods can be found, in order to reduce the fault of machinery and all kinds of losses.
通过失效分析工作可以有效地减少或防止同类事故的再次发生。
Failure analysis can effectively cut down or prevent the same failure.
本文是液化气船风险评估的一个子系统，重点研究的是液化气船发生突发性非正常热源事故后货舱失效的风险评估。
This dissertation is the subsystem of risk Assessment of liquefied gas Carrier, and its key content studies how to assess the failure risk of liquefied gas tank under non-normal heat source accident.
在钻具失效事故中，钻铤的疲劳失效尤为突出。
In the event failures of boring tools, the fatigue failure of the drill collar is especially prominent.
使用本装置，轻则导致通信失效，重则损害控制器，甚至导致安全事故发生。
The device utilization may result in the slight communication failure, or the serious controller's damage, or even the occurrence of safety accidents.
压力容器事故发生后，对事故进行迅速而有效的失效分析是至关重要的。
It is important that a rapid effective failure analysis is carried out after accidents.
在分析飞行安全风险的基础上，通过定义事故或危险事件损失效应，选取合适的效用函数进行飞行安全风险的度量。
Based on analysis to the flight safety risk, we choose a proper utility function to measure the flight safety risk by defining the loss effect of accidents or dangerous events.
分析了失效后果的影响因素，制定了管道维修措施及流程、事故应急准备和善后措施。
Analyze the factors which influence failure effect, and constitute mitigation methods of failure effect according to situations of meeting an emergency, closure and management after an accident.
但是，在其逆掩推覆带钻井作业中，极易发生钻具失效事故。
However, the accident of drill string damage happened easily in the overthrust nappe belt of these regions in the drilling.
简要介绍了油气输送管道的失效及预防、外失效事故报告规定。
It briefly introduces failure and prevention in Oil and Gas Transmitting Pipeline, and failure accident report writing format regulation at the aboard.
在中国南方的广东省东莞市，超载保护失效被认为是上周五致20人受伤的电梯坠落事故的原因。
In Dongguan, South China's Guangdong Province, overload protection failure is being blamed for last Friday's elevator plunge that injured 20 people.
本文使用MELCOR软件对船用反应堆破口事故进行了模拟，计算了从事故发生到反应堆底端失效的系统响应。
This paper use MELCOR software for simulating the break accident of Marine reactors, and calculating from the happen of the reactor accident to the failure of the bottom of Marine reactors.
天然气管线运行失效直接影响着天然气的正常生产，极可能造成灾难事故。
The failure of the natural gas pipeline does harm to the regular production and contributes to disaster.
介绍了一起因限位失效导致的起重机事故，深入分析了大小车极限位置限制器的失效原因，并从多方面提出了预防措施。
A crane accident caused by invalid position limit is introduced. The causes for invalid position limiters are analyzed, and the preventive measures are proposed.
现场钻具失效资料的统计分析表明，在钻具失效事故中稳定器失效占有很大一部分。
The statistics of drill tool failures from the oil field shows that failures of the stabilizer are large part of failures of drill tool failures.
现场钻具失效资料的统计分析表明，在钻具失效事故中稳定器失效占有很大一部分。
The statistics of drill tool failures from the oil field shows that failures of the stabilizer are large part of failures of drill tool failures.
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