您要查找的是不是：
- 变精度双向变异S-粗集variable two-direction S-rough sets
- 变精度双向变异S-粗集与它的变异结构Two-direction Variation S-Rough Sets of the Variable Precision and Its Variable Structure
- 变精度单向变异S-粗集variable precision one direction variation S - rough sets
- 变精度双向IS-粗集variable precision two direction improper singular rough sets
- 广义双向变异S-粗集generalized two-direction variation singular rough sets
- 变异S-粗集Variant S-rough sets
- 不变的unchangeable
- 变小lessening
- 变大fill out
- 保持不变hold the line
- 粗的thick
- 并集union of set
- 变老ageing
- 群集throng
- 变坏go to the bad
- 变心cease to be faithful
- 产业集群industry cluster
- 双向变异S-粗集two direction variation S-rough sets
- 变暖warming
- 杂集miscellany
