信息安全 容侵系统与生存技术 释文 contingency plan, emergency plan 应急计划
- freestyle wrestling
- freestyle wrestling of Summer Deaflympics
- free subgroup
- free subscript
- free substitution
- free surface
- free surface approximation
- free surface boundary conditions
- free surface planning
- free system
- free-tailed bats
- free term
- free-term
- free term indexing
- free text method
- Free Thai Movement
- Freetown
- free trade agreement，FTA
- free trade area
- free trade policy of England
- free trade zone
- free translation
- free tree
- free trivector
- free ultrafilter