Real game engines use this pattern (or its 3D cousin, the Octree) for broad-phase collision detection: the quadtree quickly identifies candidate pairs, and a more expensive narrow-phase check tests the actual geometry.
笔录由仲裁员、记录人员、当事人和其他仲裁参与人签名或者盖章。
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on options ordered, could include a teletypewriter, card reader and punch,