Since rules inferring is faster than geometry computation and requires little time, the rules are of help to improve efficiency of querying spatial data.
由于规则推理比几何计算速度快、内存消耗小，因此推理能够提高基于空间关系的空间数据查询的速度和效率。
Using the circular arc Swedish method in tailing pond dam body stability analysis, the paper establishes the computation geometry model, calculates the dam body safety coefficient.
运用圆弧条分法对尾矿库坝体稳定性进行了分析，建立了计算几何模型，计算出坝体安全性系数。
Using this computational format the transformation frame multiple-dimensional problem with complex geometry shape into one-dimensional problem is realized, so that computation precision is increased.
在该计算格式中，实现了几何形状复杂的多维问题向一维问题的转换，从而提高了有限元离散节点的计算精度。
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