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
- step size; step width
- step stress test
- step type optical fiber
- step-type optical fiber
- step-up operator
- step-up substation
- step-up substation control system
- step-up transformer
- step utilization
- step voltage
- step water price
- step width
- stepwise
- stepwise addition polymerization
- stepwise adsorption
- stepwise approximation
- stepwise clustering
- stepwise constructed calculus
- stepwise construction of the solution
- stepwise decomposition
- stepwise development
- stepwise dilution
- stepwise discriminant
- stepwise dissociation
- stepwise distillation