GIS is an important analysis and application tool in earth science, which is based on contemporary geography and spatial information science.

GIS是现代地理科学与空间信息科学相结合的产物，是现代地学领域十分重要的一门分析和应用工具。

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Rather, it was a developer-oriented event to unveil an iPhone application development tool and the App Store.

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The S Note application is a unique tool that gives users the ability to combine notes and sketches with other digital content in ready-to-use templates.

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Bradley is moving on to talk about a tool called Application Resource Optimizer, which is intended to make your apps run faster, use less power and consumer bandwidth more efficiently.

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