It seemed to be made of grey metal, shiny but rough, like emery paper.
它看起来像是由灰白色金属制成，有光泽但很粗糙，质感如砂纸。
Method The grey relational cluster method was applied in this paper.
方法应用灰关联聚类法对其进行评价。
This paper studies the technique of laser surface treatment of grey iron.
本文探讨了激光表面处理灰铁的工艺。
The possibility of applying grey theories in traffic safety field was discussed in this paper.
对灰色理论在交通安全评价领域应用的可行性进行探讨。
This paper took the prediction of pavement condition index by the grey Markov model.
本文运用灰色马尔可夫模型对路面破损状况进行预测。
In this paper, a new method for grey forecasting model is proposed.
给出了一种灰色预测模型的新方法。
This paper applied non-equidistance grey model to forecast the tunnel settlement.
运用非等间隔序列的灰色模型进行隧道沉降预测，并通过实例计算分析。
This paper applies the grey related analysis method in evaluating the project economic state.
运用灰色关联分析方法对项目经济状态进行评估。
This paper applies the grey related analysis method in evaluating the project economic state.
运用灰色关联分析方法对项目经济状态进行评估。
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