The KML document can specify geographic data including addresses, 3d coordinates on the Earth, and custom textual and visual data to be overlaid on maps or 3d models of the Earth.

KML文档可以确定地址、地球上的3d坐标，以及地图上已覆盖的自定义文本和可视数据，或地球上的3d模型等地理信息。

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Flex provides a rich MXML extensive class library for visual components, containers, and remote service objects and data models.

Flex为可视组件、容器以及远程服务对象和数据模型提供了丰富的MXML扩展类。

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In viewing our universe by way of models, we can build a hypothesis as a picture, visual data organizing itself more easily than word-based modeling (either as sound or text), and visualization lends itself to extremely large models.

FORBES: Your Brain Was Made For Visual Modeling