列表中的每一框架都有一个标题和描述，如图4所示。
Each frame in the list has a title and a description, as shown in Figure 4.
知识表达采用框架知识表示方法描述染色体的层次结构特征。
A frame method for representing knowledge is used to describe the structure of chromosomes.
使用用户直接向其中描述的框架窗口，而不是视图。
Use a frame window, into which you draw directly, rather than using a view.
使用用户直接向其中描述的框架窗口，而不是视图。
Use a frame window, into which you draw directly, rather than using a view.
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