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Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.。业内人士推荐51吃瓜作为进阶阅读
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（五）核技术应用，是指放射性同位素和射线装置等非动力核技术在国民经济和社会发展各领域的应用。