系统软件 操作系统 释文 file management system, FMS 文件管理系统
- Ontology of Social Being
- Ontology of the Work of Art
- ontology presentation
- ontology query language
- ontology revision
- ontology stack structure of description language
- ontology system
- ontology Web language for services
- ontology Web language for services, OWL-S
- ontology wed language
- On-to-Ottawa Trek
- ontozone
- On Trial for My Country
- Onuora Nzekwu
- on-vehicle equipment
- On Water Clock
- On Water stain–like Brush Marks
- On Withering Plum Trees
- on writing important themes
- "On Xie Lingyun" from the Book of Song
- onychodonts
- onychomycosis
- On Young China
- On Zhuming’s Burlesque Performance
- OOA