多行索引
... Single column 单行索引 Concatenated 多行索引 Unique 唯一索引 ...
多列索引
... Concatenated 多列索引 Unique 唯一索引 NonUnique 非唯一索引 ...
链撃电动机
... 复激电动机 motor; compound 链撃电动机 motor; concatenated 电容式电动机;电容式马达 motor; condenser ...
串联
... Concatenated 串联 replica 复本 one-way 一路 ...
串级电动机 ; 链系电动机 ; 级联电动机 ; 串级电念头
计 链接码 ; 接编码
多联环 ; 连环体
In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball". In some but not all formalisations of concatenation theory, also called string theory, string concatenation is a primitive notion.