Yeti可视化显示自动将对象实例组织为更大的内聚单元。
The Yeti visualizations automatically group together the instances of objects into larger cohesive units.
除此之外，应当有一套Tapestry对象，把这些业务对象组织成有意义的工作单元。
In addition to this, you should have a set of Tapestry objects that group those business objects into meaningful units of work. You can see this programming model in action in Listing 1.
地理特征对象是时空数据组织的基本单元，而事件是导致时空数据发生变化的根本原因。
The feature is an essential element that comprises spatiotemporal data information and the event is a fundamental factor that result in changing spatiotemporal data.
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