理学 数据库中间件 释 database middleware 数据库中间件 处于底层数据库和用户应用系统之间，主要用于屏蔽异构数据库的底层细节的中间件。是客户端与后台的数据库之间进行通信的桥梁。
数据库 数据库应用开发 释文 database middleware 数据库中间件
- permutation automaton
- permutation character
- permutation cipher
- permutation code
- permutation cycle
- permutation entropy
- permutation function
- permutation generating algorithm
- permutation graph
- permutation group
- permutation homeomorphism
- permutation identity
- permutation index
- permutation inversion
- permutation involution
- permutation matrix
- permutation of arguments
- permutation of a set
- permutation of codes
- permutation of columns
- permutation of elements
- permutation of indices
- permutation of numbers
- permutation of planar on shell diagram
- permutation of planar on-shell diagram