一款刚迈过临床门槛的新药，真能成为长春高新的救命稻草？
A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.
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Daventry Community Larder
Nuclear power stations get hot. That is the plan. Pressurised steam drives turbines to generate electricity. To cool that steam and return it to the boilers, vast amounts of seawater are needed.