求翻译：描述了基于正交多项式的最小二乘法原理及曲线拟合算法；灰色系统预测法GM（1，1）的建模；灰色关联原理，灰色关联度量化数学模型；检修运维作业成本的模型，维持费用模型、损耗费用模型、环境成本模型、故障成本模型；是什么意思？

Description based on orthogonal polynomial least squares method of curve fitting algorithm; prediction method of gray system gm (1,1) modeling; the Grey, gray associated with quantitative mathematical model; maintenance operation and maintenance operating costs model, the maintenance cost model, los

Description based on the orthogonal polynomial multiplication of minimum 2 theory and Curve Fit algorithm; gray System Forecast GM Law (1, 1) modeling; gray associated theory, and the gray scale associated quantitative mathematical models; service delivery model of the operating costs, maintenance c

Described based on the orthogonal multinomial least squares method principle and the curve fitting algorithm; Gray system forecast law GM(1,1) modelling; Gray connection principle, gray connection metrization mathematical model; The overhaul transports the Uygur cost of operation the model, the main

Description based on orthogonal polynomials and principle of least squares curve fitting; grey prediction GM (1,1) modeling; grey theory, mathematical model of grey incidence degree; maintenance operation and activity-based cost modeling, requirements for maintenance cost model, loss models, environ

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