automatic word acquisition 基本例句 自动分词 Combinatorial ambiguity is a vital issue in Chinese word segmentation.组合型歧义切分字段一直是汉语自动分词的难点。 The existence of unlisted words seriously affects the accuracy and speed of automatic segmentation of Chinese words.未登录词的存在严重影响了汉语自动分词与自动标引的准确率和速率。