UEA补偿收缩混凝土：UEA shrinkage complementary concrete
update（）函数：update function
USLE土壤侵蚀模型：universal soil loss equation
userData行为：userData behavior
UDP-Lite协议：UDP(User Datagram Protocol)-Lite
UV-ICCD探测器：UV-ICCD detector
UN-SCAN-IT：UN-SCAN-IT
uPD78F9202：uPD78F9202
UNION-NS算法：UNION-NS algorithm
UGOPEN/API：UG OPEN/API
USGS DEM格式：USGS DEM
UMTS/WCDMA：UMTS/WCDMA
U-Boot引导程序：U-Boot
UPD78F9222：UPD78F9222
USB主机控制器驱动：USB host controller driver
Unionlib系统：unionlib system
UdpClient类：UdpClient class
Unicode数据库：Unicode database
ULSI性能能量效率：ULSI performance energy efficiency
UDDIBroker：UDDI Broker
UPLINKFAST：UPUNKFAST
UniverseII：Universe II
USB驱动程序软件包：USB driver software package
UWB-ad hoc：UWB-ad hoc
user data域：user data domain
UWB无线传感器网络：UWB wireless sensor networks
USB Camera：USB Camera
U2270B射频芯片：U2270B radio chips
USTMUSIC算法：UST-MUSIC algorithm
UHMWPE复合材料：UHMWPE fiber composites
UIScript机制：UIScript
Unicorn 系统：Unicorn system
UPML吸收边界条件：UPMLabsorbingboundary conditions
USB2.0差错控制：USB2.0 error control
UDPoverDVB：UDP over DVB
USN（统一存储网）：USN(United Storage Network)
UMLprofile：UML profile
UN/EDIFACT：UN/EDIFACT
URPP访问控制模型：URPP access control model
UG CAD/CAM：UG CAD/CAM
ULSI化学机械抛光：ULSI CMP
UML集成化支持环境：UML integrated supporting environment
UML可视化建模系统：UML visual modeling system
UNIX shell：UNIX shell
U-Pb和Hf同位素：U-Pb and Hf isotopes
U-Pb同位素年代学：U-Pb isotope chronology
U_（37）~K指标：U_(37)~K index
U1x-广义正定矩阵：U1x-generalized positive definite matrices
U2x-广义正定矩阵：U2x-generalized positive definite matrices
U-D分解卡尔曼滤波：U-D factor Kalman filter