Sheep West interchange and other Ring interchange structure is different, it is cut straight beam, while the other is a continuous beam, so the sheep West interchange is more suitable for removal.
羊西立交与二环其他立交结构不同，它是剪直梁，而其他是连续梁，因此羊西立交更适合拆除。
It used ring data structure to save massive data effectively. Bounded error-distances from vertices to average plane were computed to find prime vertices for removal.
采用环形数据结构有效存储大规模数据点，通过计算点到平均平面的有限误差距离进行压缩点判别。
It used ring data structure to save massive data effectively. Bounded error-distances from vertices to average plane were computed to find prime vertices for removal.
采用环形数据结构有效存储大规模数据点，通过计算点到平均平面的有限误差距离进行压缩点判别。
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