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1)  core damage assessment
堆芯损伤评价
1.
Containment radiation level is one of the most important base for core damage assessment and protective actions recommendation during accidents.
事故期间安全壳内的辐射水平是堆芯损伤评价和进行防护决策的重要依据,计算不同堆芯状况下安全壳内辐射监测仪表示值是应用该方法的前提条件。
2.
Study on applying CDAG to core damage assessment for the large break severe LOCA accident of Qinshan Ⅱ;
5程序模拟了秦山二期无缓解措施的大破口LOCA严重事故序列,并利用西屋公司堆芯损伤评价导则(CDAG)对该事故早期堆芯损伤进行评价,得到了下封头失效前特定时刻的堆芯损伤状态和程度。
2)  Core damage
堆芯损伤
1.
According to the current design and relative procedures in QNPP,the main feed-water system can not be restored after its isolating under accident conditions,and thus there will be a larger contribution to the total core damage frequency of QNPP.
按照现有的设计和遵循的相关规程,秦山核电厂事故工况下主给水系统隔离后不能恢复运行,对核电厂总的堆芯损伤频率的贡献较大。
3)  damage assessment
损伤评价
1.
Aimed at the defects of the classic seismic damage assessment model,a model based on form of elastic deformation energy was proposed and the models based on the classic park seismic and the ductility were listed.
针对典型地震损伤评价模型存在的缺陷,通过将地震复杂的滞回过程进行简化,提出了一种弹性变形能形式的损伤评价模型;重点阐述了典型的Park地震损伤评价模型以及基于延性系数的地震损伤评价模型,并根据试验数据对这3种模型进行了对比分析。
4)  damage evaluation
损伤评价
1.
The mechanical properties and damage evaluation of the composites are also presented.
最后讨论了一些复合材料的性能特点和复合材料的损伤评价技术。
2.
Structural damage evaluation has all the time attracted broad attention due to its close relation to practical applications.
材料或结构的损伤评价 ,由于其密切联系实际应用而一直受到广泛关注。
5)  SCD (severe core damage)
严重堆芯损伤
6)  PSCD (probability of severe core damage)
严重堆芯损伤概率
补充资料:堆芯活性区
分子式:
CAS号:

性质:反应堆的堆芯。是反应堆的核心部分。核燃料在这里发生自持链式裂变反应,并且不断地释放出能量。热中子反应堆活性区由核燃料、慢化剂、冷却剂、结构材料及保证反应堆启动、停闭、正常运行的控制棒等。天然铀石墨慢化水冷反应堆的堆芯就像一个石墨堆砌成的大型蜂窝煤,孔洞中装入燃料元件和通过冷却剂。

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