文学 〔美洲〕 释 Reader's Digest Association，Inc.; RDA 读者文摘集团 美国曾经最受欢迎的大众化杂志《读者文摘》[注]的发行商。
数据库 数据库应用开发 释文 remote database access, RDA 远程数据库访问
- unitary R-module
- unitary sampling
- unitary scattering factor
- unitary semigroup
- unitary semisimilarity
- unitary semi-similitude
- unitary similarity
- unitary similar matrix
- unitary sociable number
- unitary space
- unitary spin
- unitary subalgebra
- unitary subring
- unitary symmetry
- unitary symplectic group
- unitary transformation
- unitary transformation group
- unitary trick
- unitary unimodular group
- unitary vector space
- unit ausiliary transformer
- unit automatic start-up and shut-down control
- unit ball
- unit basis
- unit bore system