For example, a region responsible for 20% of patents in the 12 classes, but only 10% of all patents, has a RSTA of 2, suggesting relative strength in the 12 key classes.

比如，一个地区在12个科技领域内占了20%的专利，但是在所有科技领域内仅占10%，这样相对科技优势指数就是2，表明该地区在12个主要的科技领域内具有相对较强的优势。

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For example, consider a UML model that has a dependency between 2 classes (Class1 and Class2), each nested under a different package (say Package1 and Package2).

举例来说，考虑一个具有两个类(Class1和Class2)之间依赖的uml模型，每一个都嵌套在一个不同的包中(Package1 and Package2)。

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The curriculum in one year is to learn 4 books, each of which needs 48 class hours to be finished. Each week has two classes, each class 2 class hours, each class hour 40 minutes.

一年的课程安排是学习四本书，每本书是48课时，每个星期上两次课，每次是2个课时，每个课时是40分钟。

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