But the application in station classification of urban rail transportation was few.
然而其应用在交通领域车站研究上的确很少。
Classification of continuous die in multi-station and level of stamping technology, structure features and manufacture technology of such die have been introduced.
介绍了多工位连续模的分类法及各类多工位连续模的冲压工艺水平、结构特点及制造工艺。
This paper introduces the objective, total structure and features of "Directive rules for classification and coding of spare parts and fittings of power station equipments".
介绍了《电站设备备品配件分类与编码导则》的目标，总体结构和特点。
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