We adopt an indexing structure to grow the pattern length in a projected database, which may reduce the CPU time and save the memory consuming.

我们通过一种索引结构在映射数据库中来不断地增长模式长度。

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An indexing structure is adopted to grow the pattern length in a projected database, which may reduce the CPU time and save the memory consuming.

通过一种简单的索引结构在映射数据库中不断地增加模式长度。

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If any of these assumptions are not valid for your database, you have to make adjustments that vary from trivial (for column names) to somewhat involved (in the case of a projected coordinate system).

如果这些假设对于您的数据库不成立，那么必须做某些调整，这些调整可能很简单(比如对于列名)，也可能比较复杂(比如对于投影坐标系)。

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