undo与redo：undo and redo
uPD6453芯片：uPD6453
UPO s搜索算法：UPO's searching algorithm
UPSCodeII：UPSCodeII
UltraTech：UltraTech
Use-Case图：Use-Case Chart
USB复合设备列举：USB Composite Device Enumeration
UTOPIA2接口：UTOPIA2 interface
User-pull：User-pull
USB通用串行总线：USB
ucdos 6.0：USDOS 6.0
UTC（NTSC）：UTC
USB数字成像系统：USB digital imaging system
UML标准建模语言：UML
UPVC塑料排水管：UPVC plastics sewer
uclinux内核：uClinux kernel
u-fuzzy同态：u-fuzzy Homomorphism
USSOR迭代方法：USSOR iterative method
U83snoRNA：U83 snoRNA
Uq（sp（4））：Uq(sp(4))
uthorware：Authorware
Ux-广义正定矩阵：Ux-generalized positive definite matrices
U-Pb同位素定年：U-Pb dating
U-Pb同位素测年：U-Pb isotopic dating
UP-UHP变质岩：HP-UHP metamorphic rocks
U-Th矿物等时线：Mineral U-Th isochron
U-87 MG细胞：U-87 MG cells
UserTools：user tools
U-Pb同位素年龄：U-Pb isotope age
Urysohn引理：Urysohn lemma
UTILIN“S”：UTILIN"S"
U（t,t'）方法：U(t,t')method
U（4）振动子模型：U(4) vibron model
Uhlhorn定理：Uhlhorn's theorem
U-Pb同位素体系：U-Pb isotopic system
urocortin：urocortin
U/I合作创新中学：Learning By U/I Cooperative Innovation
U形弯曲与S形导轨：u-bending and s-rail
U（r）_相对亏量：U(r) _relative deficiency
U-Pb不一致年龄：discordant U Pb age
UHP和HP变质带：UHP and HP metamorphic belt
UTC（CSAO）：TA(CSAO)
U2snRNA基因：U2snRNA
Unipodal数：the Unipodal Number
Urysohn闭性：Urysohn-closedness
ut-PA嵌合蛋白：ut PA Chimera
U-50,488H：U-50,488H
UR90环形非稳腔：unstable ring resonator with 90°beam rotation
UNICHRO软件：UNICHRO package
uu→ss跃迁过程：transition proce
uPD6453芯片：uPD6453
UPO s搜索算法：UPO's searching algorithm
UPSCodeII：UPSCodeII
UltraTech：UltraTech
Use-Case图：Use-Case Chart
USB复合设备列举：USB Composite Device Enumeration
UTOPIA2接口：UTOPIA2 interface
User-pull：User-pull
USB通用串行总线：USB
ucdos 6.0：USDOS 6.0
UTC（NTSC）：UTC
USB数字成像系统：USB digital imaging system
UML标准建模语言：UML
UPVC塑料排水管：UPVC plastics sewer
uclinux内核：uClinux kernel
u-fuzzy同态：u-fuzzy Homomorphism
USSOR迭代方法：USSOR iterative method
U83snoRNA：U83 snoRNA
Uq（sp（4））：Uq(sp(4))
uthorware：Authorware
Ux-广义正定矩阵：Ux-generalized positive definite matrices
U-Pb同位素定年：U-Pb dating
U-Pb同位素测年：U-Pb isotopic dating
UP-UHP变质岩：HP-UHP metamorphic rocks
U-Th矿物等时线：Mineral U-Th isochron
U-87 MG细胞：U-87 MG cells
UserTools：user tools
U-Pb同位素年龄：U-Pb isotope age
Urysohn引理：Urysohn lemma
UTILIN“S”：UTILIN"S"
U（t,t'）方法：U(t,t')method
U（4）振动子模型：U(4) vibron model
Uhlhorn定理：Uhlhorn's theorem
U-Pb同位素体系：U-Pb isotopic system
urocortin：urocortin
U/I合作创新中学：Learning By U/I Cooperative Innovation
U形弯曲与S形导轨：u-bending and s-rail
U（r）_相对亏量：U(r) _relative deficiency
U-Pb不一致年龄：discordant U Pb age
UHP和HP变质带：UHP and HP metamorphic belt
UTC（CSAO）：TA(CSAO)
U2snRNA基因：U2snRNA
Unipodal数：the Unipodal Number
Urysohn闭性：Urysohn-closedness
ut-PA嵌合蛋白：ut PA Chimera
U-50,488H：U-50,488H
UR90环形非稳腔：unstable ring resonator with 90°beam rotation
UNICHRO软件：UNICHRO package
uu→ss跃迁过程：transition proce