《英汉医学词典》software development system(SDS) 软件开发系统 fairchild software development system: 仙童软件开发系统software development system: 软件开发系统; 软件研制系统system development hardware-software: 系统硬件-软件开发expert system development software tool: 专家系统开发软件工具sds switched discrete system: 交换离散系统下载手机词典可随时随地查词查翻译