The dashed circle shows the current best distance. As the algorithm finds closer points, the circle shrinks, which causes more subtrees to fail the "could contain a closer point?" test and get pruned. The search usually gets cheaper as it progresses.
Here’s how it works:
The rocket was carried by a huge machine called a crawler-transporter, travelling at a top speed of 0.82 mph (1.3 km/h) as it trundled along. Live coverage captured the slow-moving spectacle.。safew官方下载对此有专业解读
It meant Collins and her crew would make it safely home.
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第十九条 国家建立完整的核燃料循环体系，对乏燃料实行循环利用，妥善处理处置放射性废物。
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