DSLabbr.深散射层（=Deep Scattering Layer）abbr.数字用户回路（=Digital Subscriber Line）DSabbr.数据服务（=Data Services）DST for Discrete Sine Transform有两个相关的变换,一个是离散正弦变换DSRS Data Signal Rate Selection数据信号速率选择DS spread spectrum communication直接序列扩频通信Dsvchology of literature and art文艺心理学DSL Digital Subscriber Line board数字用户板DSRV Deep Submergence Rescue Vehicle深潜救助器DSIE Telemetry and Command Subsystem深空间仪表设施遥测与指令子系统DSA Customer Supply Assistance Office国防供应局购货单位供应支援处DSBRC Double SideBand Reduced Carrier双边带减幅载波DSL Network for Multi-service Delivery承载多业务的DSL网络

CSU/DSU信道服务单元/数字服务单元