勾良苗语关系从句有前置、后置两种类型,二者的关系化标记、语法结构、语义特点、语用方面存在很大差异。前置型的使用频率比后置型高,是优势语序。提取名词中心语时,后置型存在较大的局限性,只能直接提取名词短语可知度等级序列中的主语和旁格成分,前置型则能提取除领属语之外的其他成分。从来源上看,后置型是固有的,前置型是后来适应语用的需要新增的。 There are two types of relational clauses in the Goulang - Miao language relations: the relation marks, grammatical structures, semantic features and pragmatics. Pre-type frequency than the post-type high, is the dominant word order. When extracting the noun central language, the posterior type possesses great limitations. Only the subject and the paraxial components in the noun sequence can be directly extracted, while the prepositive type can extract other components than the linguistic. From the source point of view, post-type is inherent, pre-type is later adapted to the pragmatic needs added.