型材的形状为几何图形，如正六边形、正四边形。
The shape of the shaped sections is a geometric figure, for example, a hexagon and a square.
其次，对现有的场景分块策略作了详细的研究，现有的场景分块策略是建立在规整的正四边形基础之上的。
Secondly, we research the partition strategy to the existing scene in detail which is based on the regular quadrangle.
该文利用平面正四边形阵列对直升机目标进行定位，讨论了定位系统的原理及其算法，并对定位精度进行了分析。
This paper USES a square array to locate a target of helicopter and deals with location theory and its algorithm, as well as analyzing location accuracy.
那块我们驻扎的石头靠倚的是一个奇迹，它三十尺高而底部也有三十尺，差不多是个完美正四边形，而扭曲的树木拱盖在它上面并往下窥视我们。
That rock we were camped against was a marvel it was thirty feet high and thirty feet at base, a perfect square almost, and twisted trees arched over it and peeked down on us.
那块我们驻扎的石头靠倚的是一个奇迹，它三十尺高而底部也有三十尺，差不多是个完美正四边形，而扭曲的树木拱盖在它上面并往下窥视我们。
That rock we were camped against was a marvel it was thirty feet high and thirty feet at base, a perfect square almost, and twisted trees arched over it and peeked down on us.
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