数据库 数据库理论 释文 fourth normal form, 4NF 第四范式
- undistinguished
- undistorted
- undistorted image
- undistorted lattice
- undistributed profits/retained earnings
- undisturbed
- undisturbed differential equation
- undisturbed orbit
- undisturbed sample
- undisturbed sun
- undo
- undograph
- Undoing Aesthetics
- undope
- undor
- undosed
- undotted index
- undotted spinor
- UNDP
- undrained shear strength
- undriven camera
- undue performance by a delinquent debtor
- undulata
- undulated beam injector
- undulating membrane