分析表明，中子辐照脆化、腐蚀损伤、疲劳及磨损引起核电厂不可更换部件及更换困难部件的老化、降级是制约或极大程度影响电厂寿命的关键问题。

The results show that neutron radiation embrittlement, corrosion damage, fatigue and wear are the key issues which cause aging or degradation of un replaceable or difficultly replaceable components.

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在设备老化机理中，关键问题是中子辐照脆化、腐蚀损伤、疲劳及磨损。

On ageing mechanism of these components, the critical problems are neutron irradiation embrittlement, corrosion damage, fatigue and erosion.

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聚酯亚胺硅钢片漆具有良好的电气性能、耐热性、附着性、耐辐照性、耐化学腐蚀性等。

The polyesterimide steel sheet vanish has good electrical, heat resisting, adhesive properties and high radiation resistance.

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