The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.
Source: Computational Materials Science, Volume 266，这一点在爱思助手下载最新版本中也有详细论述
，详情可参考旺商聊官方下载
Наука и техника
remote_port = 8022，详情可参考谷歌浏览器【最新下载地址】
But those upgrade programmes are often slowed down by local objections.