The logical model of the database is simply a representation of all the data requirements of the user, put into a normalized form.
数据库的逻辑模型仅仅是对用户的所有数据需求的一种表示，它将这些需求变成一种范式。
If the form of representation is the logical form, then the picture is called a logical picture.
如果这种表现形式是逻辑的形式，那么图像也可以称为一幅逻辑图像。
The picture has the logical form of representation in common with what it pictures.
图像与它所描述的对象具有相同的逻辑表现形式。
The picture has the logical form of representation in common with what it pictures.
图像与它所描述的对象具有相同的逻辑表现形式。
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