顺序定序系统 sequential system: 时序系统; 顺序系统; 顺序制; 序列式系统system sequential: 序列式系统color sequential system: 顺序制彩色电视color television sequential system: 顺序制彩色电视default system for sequential file: 顺序文件的缺省系统下载手机词典可随时随地查词查翻译