Pictured is "Space-Filling blocks," which requires visitors to rely on spatial reasoning, or "mental geometry," to stack a series of red blocks so there's no wasted space.
This paper analyses data type of Coal Spatial Information System, then defines a series of DTD.
本论文分析了煤矿空间信息系统的数据类型，定义了一套DTD文档。
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The study systemically explored the influence of the relationship between target and distractors on spatial contextual cueing effect through three series.