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
- semicycle
- semicylinder
- semi-dark coal
- semidarkness
- semi-decomposable
- semi-Dedekind lattice
- semi-definite
- semi definite complementarity problem
- semi-definite complementarity problem
- semi-definite form
- semi-definite inner product
- semi-definite kernel
- semi-definite matrix
- semi-definiteness
- semi-definite operator
- semi definite programming
- semi-definite programming
- semidefinite programming
- semi-definite programming problem
- semi definite quadratic form
- semi-definite quadratic form
- semidefinite time
- semi-degree
- semi-dental
- semi-derivative