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。
In this paper, Eighteen exercise objectives and their evaluation criteria are presented, including the method for choosing appropriate exercise objectives according to their group.
本文介绍了可供选择的十八项演习目标和各项目标的评价准则,同时介绍了分组选择演习目标的方法。
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