使用分区修剪的表扫描(TBSCAN)。

Table scan (TBSCAN) with partition pruning.

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取定点放射分区，将发片带至第一片修剪三角反曲线层次。

Taking pivot section and over-direct each section to the first and cut a triangular concave technique.

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取斜分区，跟随头型修剪切口为45度。

Take diagonal section, cut at 45 degrees following the head shape.

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取斜分区，跟随头型修剪切口为45度。

Take diagonal section, cut at 45 degrees following the head shape.

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