U型开缝：U-sloted patch
U型插板：U-type flash board
USB板：USB board
U型埋管：U-tube
uPSD：uPSD
ULDB：ULDB
UIDL：UIDL
UG技术：UG technology
UT变换：unscented transformation
UG建模：UG modeling
UR条件：UR condition
UCOS：UCOS
UPnP：UPnP
UPQC：UPQC
U形锚固：U-type anchorage
UG系统：UG system
U形切槽：U-shaped notch
UCMM：UCMM
U型燃烧：U-firing
UI设计：UI design
uIP栈：uIP stack
UPFC：UPFC
UFLS：UFLS
U型支架：U-tape frame
U形通道：U-shaped channel
U型沉井：U shaped caisson
UGe2：UGe2
UEGO：UEGO
UE配流：UE assignment
UTCS：UTCS
UL认证：UL certification
UV覆盖：UV coverage
U型钢梁：U-shaped steel beam
U-矩阵：U-matrix
UV辐照：UV radiation
UMSM：UMSM
U1mA：U1mA
U（Ⅳ）：U(Ⅳ)
UUID：UUID
U型布置：Ushaped layout
U形加固：reinforced by U-jacket
UV消毒：UV disinfection
U形渠道：U-shaped canal
UMTS：UMTS
UMAT：UMAT
UDMA：UDMA
U型渡槽：U-shell flumes
U形钢板：U shaped steel sheet
U型拉槽：U cutting
UTF8：UTF8