理学 空间加速结构 释 Quadtree 四叉树 四叉树是一种所有内部节点都具有4个子节点的层次式数据结构，通常被用来将某个二维空间递归地分割成4个较小的子空间。
quadtree 四叉树 quaternary tree 四叉树
计算机应用 计算机辅助设计与图形学 释文 quadtree 四叉树
- undecidable
- undecidable formula
- undecidable problem
- undecidable proposition
- undecidable theory
- undecillion
- undecimal
- undecimal number system
- undecimal system
- undecomposable
- undefinability
- undefined
- undefined concept
- undefined symbol
- undefined technical term
- undefined term
- undeflected
- undeformed
- undegraded
- undegraded neutron
- undelayed neutron
- undemonstrable
- Undeniable Signature
- undepleted flux
- underactuated control