Specifically following contributions have been made:1. Through the application of the gesture-based interaction techniques, the complex interaction operations are replaced by simple strokes.

将基于笔划的手势交互技术引入到三维草图设计中，由简单的笔划命令取代各种复杂的交互操作命令。

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Various technologies such as augmented reality, multi-modal interactions, gesture based interfaces, surface computing etc. are means to achieve immersive interaction experiences for end customers.

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