除了非常单调并且容易出现错误之外，第一种方法要求您将Web内容呈现portlet放到每个页面中，并将它们配置为指向当前的站点区域。

Besides being very tedious and error prone, the first option requires that you put the Web content rendering portlets on each page and configure them to point to the current site area.

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第一种是基于电流信号的刀具磨损模型，第二种是直接基于刀具磨损量的模型，这两种模型均滤除了切削条件的影响。

One is the current signal model with bore cutting condition, and the another is the model of tool wear with cutting conditions and time.

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