数据库 数据库新技术 释文 document type definition, DTD 文档类型定义
- Aux matter
- auxochrome
- auxochrome group
- auxoflorence
- auxograph
- auxotroph
- Auyuittuq National Park
- Auzout
- AV
- avadana
- Ava Dynasty
- availability
- availability and serviceability
- availability blowdown ratio
- availability factor
- availability factor of vehicle
- availability heuristics
- availability model
- availability of feed mineral elements
- availability of nuclear power plant
- availability of satellite constellation
- availability theory
- available
- available characteristic
- available electron