Similar procedures in addition to the left side of common classification tree, there is the top classification.

除了同类程序中常见的左侧分类树外，还有顶端分类。

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It is in classification of graduate student course, "door" is the top level of course, with two the code expresses.

在研究生学科分类中，“门”是学科的最高级别，用两位码表示。

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And study the classification system application in diagnosing the caving and drawing characteristics of top-coal, choosing support and designing drawing mechanism.

同时研究本分类系统软件在综采放顶煤工作面顶煤的可放性诊断、支架选型和放煤机构设计中的应用。

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Schleck ensured he will wear the yellow jersey for a second day as the top 10 of the general classification standings remained unchanged.

BBC: Sergio Paulinho snatches Tour de France stage win

In the motorbike classification, Cyril Despres won stage nine to return to the top of the overall standings in his seesaw battle with Spain's Mark Como.

CNN: Defending Dakar Rally champion Al-Attiyah quits 2012 race