The characteristic and current situation of the system monitored and controlled by video were described, with many arithmetic for video moving test in video monitoring, introduced.

描述了在视频监控系统的特点和现状，介绍了在视频监控中进行视频运动检测的算法。

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First part is the current situation, characteristic and development trend of the present technology trade market.

第一部分为当前技术交易市场的现状、特点与发展趋势。

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Based on the rule of vegetation recovery and characteristic of highway construction, the current application situation of foreign plant species in the region of highway was analyzed.

根据植被恢复的规律和公路建设的特点，分析外来植物物种在路域内的应用现状。

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