Question

帮忙翻译一下，谢谢（英译汉)不要用翻译器哦~

对火电厂高温部件蠕变和持久寿命的预测方法很多，如通常采用的用持久强度、蠕变极限数据外推部件长期寿命的方法，θ函数法，蠕变空洞分级法，密度法等。在本论文中，根据T91钢持久强度预测的灰色性特征，主要采用灰色系统理论进行研究。灰色预测是根据过去的现在已知的或非确定的信息建立的一个从过去引申到未来的灰色模型，从而确定系统未来的发展趋势。该论文探索研究灰色理论在T91钢的持久强度预测中的应用。论文首先介绍了灰色系统基本理论，包括建模原理和检验方法，然后根据T91钢持久强度预测的特点，采用GM(1,1)模型对其持久寿命进行预测，并对其预测精度进行校验。关键词：T91钢；持久强度；灰色系统理论；GM(1,1)模型

Answer 1

Power of high temperature parts creep and lasting forecasting life of the many methods, such as the usual with lasting strength, creep limit data outside push parts of the long-term life method, θ function method, creep cavity classification method, density method, etc. In this thesis, according to the strength of the T91 steel lasting forecast gray properties, mainly by using grey system theory research. Grey forecasting is according to the past now known or not certain information established extended from the past to the future grey model, so as to determine the future development trends of the system. The paper studies in the gray theory T91 steel strength of the application of the lasting forecast. It firstly introduces the basic theory of grey system, including the modeling principle and testing method, and then based on the strength of the T91 steel lasting forecast characteristics, using GM (1, 1) model to predict the long-term life, and the prediction accuracy check. Keywords: T91 steel; Lasting strength; The grey system theory; GM (1, 1) model