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
- C. E. Hille
- C. E. Hille (1894—1980)
- C. Ehresmann
- C. Ehresmann (1905—1979)
- CEI
- ceiling
- ceiling effect theory
- ceiling function
- ceiling jet
- Ceiling Light
- ceiling light
- ceiling temperature of polymerization
- ceilometer
- ceiver
- C.E. Kenneth Mees
- CEL
- cel
- celadon
- Celadon Ewer in the Shape of a Dragon-Carp
- celadon figures of scribes
- celadon glazed bowl made by Ru Kiln
- celadon glazed jar with two lugs made by the official kiln
- celadon-glazed openwork porcelain pillow with a Moon Palace pattern of Yuan Dynasty
- celadon glazed vase with two phoenix-shaped ears made by Longquan Kiln
- Celadon lotus porcelain zun of Northern Dynasty