It is also helpful to have concrete methods for analyzing usability, and in this article I'll define and focus four dimensions of usability: Learnability, Simplicity, Efficiency, and Aesthetic [1].

另外，有效地评估可用性的方法也能帮上不少忙。 在本文中，我将定义并且着重讨论可用性的四个层面：易学性，简洁，效率，以及美感 [1] 。

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Equipped with the latest display technology, the CDMS-3000 combines high brightness and contrast with compact dimensions, low weight, and excellent energy efficiency.

CD MS - 3000拥有最新显示技术，具有高亮度和高对比度，并且具有体积小、重量轻和高能量效率的特点。

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Attribute reduction is one of important step in preprocessing of data mining, it improves the efficiency of the data mining algorithm by reducing the dimensions of the information.

属性约简是数据挖掘预处理中非常重要的一步，它通过减少信息的维数提高数据挖掘算法的效率。

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