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
- professional sports of Mexico
- professional sports system
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- professional standard for principal
- professional standard for teaching content in vocational education
- Professional Standards of Primary School Teacher（Proposal）
- Professional Standards of Secondary School Teacher（Proposal）
- professional task
- professional training program
- professional volunteer service
- profession of history
- professor
- Professor Mamlock
- professors' academic governance
- profibrinolysin
- PROFIBUS总线
- proficiency testing of forensic medicine identification
- proficient in law
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- Profile
- profile
- profile connection
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- profile control and water plugging
- profile control chart