您要查找的是不是：
- 静态R树static R-tree
- R树R-tree
- 静态static state
- R树索引R- tree index structure
- R树维护R-tree maintaining
- 她说话带着乡下人的轻柔的r音。She speaks with a soft rural burr.
- 静态的static
- 并行R树索引parallel R-tree indexing
- R-SBFR-SBF
- R&D资金research and development fund
- 多路R树连接Multi-way R-tree join
- R&D合作R&D cooperation
- 树袋熊koala
- 空间E-R模型Spatial E-R model
- 静态电流quiescent current
- 树种tree species
- 厚向异性系数rcoefficient of normal anisotropy r
- 并行R树空间索引parallel R-tree spatial indexing
- （R）-2-三甲基硅-2-羟基丙腈( R )-2-trimethylsilyl-2-hydroxyl-ethyleyanide
- 柠檬树lemon
