When choosing partitioning keys, draw a data model that shows the relationships among the tables that are in your database.
在选择分区键时,可以画出一个数据模型,用来显示数据库内的这些表之间的关系。
Choosing the proper UI model is key to making the application work on the small screen.
选择适当的UI模型是让这个应用程序能够适应小屏幕的关键。
Choosing the scope of our model follows from our objectives, from what we want to learn or to communicate: the making of models is a purposeful undertaking.
模型范围的选择要从我们的目标以及需要学习和交流的内容出发:制作模型是项有针对性的活动。
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