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      Spreading
      發布時間:2019年06月19日     發布人:nanyuzi  
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      Spreading

      1)展唇

      2)展連

      3)展連

       

      (1) A term in the classification of lip position in phonetics, referring to the visual appearance of the lips when they are held fairly close together and stretched sideways, as in a slightly open smile. Spread lips are noticeable in close vowels, as in the [i] of see, and contrast with neutral, open and rounded lip positions.

      (2) In some models of non-linear phonology, spreading refers to the association (or linking) of a feature or node belonging to one segment with an adjacent segment; the disassociation of a feature or node from a segment is called delinking. The notion is of particular importance in the study of assimilation, where the effect of spreading produces an output representation with multilinked nodes, and dissimilation, where a feature or node is delinked from a segment, and the orphaned node is later deleted.

      (3) In autosegmental phonology, spreading refers to a type of rule which extends the association of a tone in a given direction. Spreading is indicated by an arrow in the autosegmental rule, pointing to the right for unbounded rightward spreading, and to the left for unbounded leftward spreading.


      (1)語音學給唇位分類的術語,指雙唇看上去挨得很近并向兩邊展開,如開口微笑時的姿勢。展唇常見于閉元音,如see“看見”中的[i],與中性唇位、開唇和圓唇對立。

      (2)某些非線性音系學模型術語,指一個屬于某一個音段的特征或節點與一個鄰接音段相聯接(或連系);一個特征或節點與一個音段取消聯接叫做斷連。同化是展連的結果得出的表征式含有多重連系節點,異化是一個特征或節點與一個音段斷連,孤立的音段隨后被刪除。

      (3)自主音段音系學術語,指一類規則將一個聲調的聯接朝一定方向擴展。展連在自主音段規則中用一個箭頭表示,右向箭頭表示不受限的右向展連,左向箭頭表示不受限的左向展連。

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