UTOPIAL2：UTOPIA L2
UML2.0类图：UML2.0 class diagram
Use Case：use case
uPSD3233：uPSD3233
USB2.0传输：USB2.0 transfers
unix系统配置：unix system configuration
USSD接口协议：USSD interface protocol
Unicode码：Unicode code
UCODEHSL：UCODE HSL
UCD-SNMP：UCD-SNMP
uPD16347：uPD16347
URL类型优先级：URL-type priority
USBN9603：USBN9603
U_XMLSQL：U_XMLSQL
UWB（超宽带）：UWB
USB主从一体化：USB Host/Slave controller
UML活动图语义：uml activity diagram semantics
UNIX守护进程：UNIX daemon process
ULSI互连布线：ULSI interconnect
USB数据采集卡：USB data acquire card
USBN9604：USBN9604
USB块数据传输：USB bulk-transport
USB2.0技术：technology of USB2.0
USB设备控制器：USB device controller
UM71移频电容：UM71 frequency-shift capacitance
UML元模型转换：UML metamodel transformation
USB2.0标准：USB2.0
Unix文件系统：Unix File System
UltraEdi：UltraEdit software
UniqueID：Unique ID
U-Boot软件：U-Boot
UPNP设备架构：UPNP device architecture
USB设备初始化：USB Device Initialization
Use-case：Use-case
UG/CAM应用：UG/CAM application
UltraDev：Ultradev
Untagged：Untagged
UNIX网络编程：UNIX Programming
USB1.1接口：USB1.1
UTOPIAII：UTOPIA II
UMServer：UMServer
UNIX套接字对：UNIX socketpair
USB块存储设备：USB mass storage device
Unix作业系统：Unix
Uucode编码：Uucode encode
UML活动图模型：UML activity diagram
UMTS标准模型：UMTS standard model
USMARC著录：USMARC
U-Boot影像：U-Boot image
UPMA多址协议：UPMA