理学 系统兼容性 释 downward compatibility 向下兼容 为旧版本软硬件环境所创建的程序能够在新版本软硬件环境中运行，或者旧版本程序产生的数据和文档能够被新版本程序使用。又称向后兼容（backward compatibility）、回溯兼容。
软件工程 释文 downward compatibility 向下兼容 软件工程 释文 downward compatibility 向下兼容
- Dunchers/Dunkards
- Dundee
- Dundgovi Province
- Dunduza Chisiza Jr.
- dune
- dune chain
- Dunedin
- dune plant
- Dunford
- Dunford integral
- Dunford-Pettis operator
- Dunford-Pettis property
- Dunford-Pettis theorem
- Dungans
- Dungonab Bay-Mukkawar Island Marine National Park
- Dunhuang
- Dunhuang Academy
- Dunhuang Baisuipian
- Dunhuang Bianwenji New Book
- Dunhuang Bianwen Proofreading Notes
- Dunhuang Book of Songs Manuscript
- Dunhuang Caves
- Dunhuang Dragon Carving and the Literary Mind Manuscript
- Dunhuang erlangwei
- Dunhuang Grottoes