限域性介词的特点是:用于特定的历史时期,宾语的语义范围非常有限,一般会终止介词化,退出介词系统。限域性介词的语法性质是动词局限性语法化,其介词化的动因主要是源动词的语义溢出,其终止语法化的动因是介词系统内部的成员竞争。从限域性介词可以观察到汉语语法化的某些特点。 The characteristic of a regional preposition is: for a specific historical period, the semantic range of the object is very limited, and it generally terminates the preposition and exits the preposition system. The grammatical nature of the regional prepositions is the grammaticalization of the verb limitation. The motivation of the prepositionalization is mainly the semantic overflow of the source verbs, and the motivation of terminating grammaticalization is the member competition within the prepositional system. Some characteristics of Chinese grammaticalization can be observed from the localized prepositions.