本文用旋转矢量描述园偏振光的时空动态特征，并由此直接推导出旋光的瞬态规律。
This paper describes the time-space dynamic character of circular polarised light by rotary vector and derives directly the instantaneous state rule of rotatory by the way of former.
记忆动态场景中多客体的特征和时空信息是人类重要的认知活动。
To memorize both feature and spatiotemporal information of moving objects is a critical human activity.
利用1983~2003年土地统计资料，运用数理统计分析方法，选取土地利用动态变化相关模型，对湖南南县20年土地利用变化的时空特征进行了分析。
The temporal and spatial characteristics of land use change in Nanxian County of Hunan Province was analyzed according to the materials from 1983 to 2003.
但作者对现有的基于行为的时空数据模型的分析中发现已有的模型在个人行为的动态性特征体现、行为可视化以及行为活动的统计、分析等技术上存在一定的欠缺。
But through the analysis of the data model for activity-based, the author found that the current models has some drawbacks on the dynamic character, videotext and statistic analysis and so on.
但作者对现有的基于行为的时空数据模型的分析中发现已有的模型在个人行为的动态性特征体现、行为可视化以及行为活动的统计、分析等技术上存在一定的欠缺。
But through the analysis of the data model for activity-based, the author found that the current models has some drawbacks on the dynamic character, videotext and statistic analysis and so on.
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