Single-base

单基[转换]

A type of transformational rule recognized in early models of transformational grammar, where the rule operates with an input of one terminal string. Single-base transformations are also known as singulary transformations, and are opposed to double-base types, where more than one string is involved.

转换语法一些早期模型分出的一类转换规则，这类规则操作的输入只含有一个终端语符列。单基转换也称作单一转换，与双基转换对立，后者的输入涉及不止一个语符列。