The ISO SQL-92 standard recognizes this difference and provides support for these two interval types.
ISOSQL- 92标准承认了这种不同，并提供了对这两种时间间隔类型的支持。
We handle every grid node with sub-pixel orientation method and find out subsection linearity equation between every space grid interval by standard difference contrasting method.
对每一个网格节点进行亚像素处理，在相邻的网格区间节点上用标准差值对照法确定分段线性直线方程。
We handle every grid node with sub-pixel orientation method and find out subsection linearity equation between every space grid interval by standard difference contrasting method.
对每一个网格节点进行亚像素处理，在相邻的网格区间节点上用标准差值对照法确定分段线性直线方程。
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