per·ti·nen·cy /-tṇən(t)si, nən(t)si/
  適切,妥當,適當
  pertinency
  切合性(檢索結果滿足個別用戶程度)
  pertinency
  切合
  Per·ti·nence Per·ti·nen·cy n.  The quality or state of being pertinent; justness of relation to the subject or matter in hand; fitness; appositeness; relevancy; suitableness.
     The fitness and pertinency of the apostle's discourse.   --Bentley.
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  pertinency
       n : relevance by virtue of being applicable to the matter at
           hand [syn: applicability, pertinence] [ant: inapplicability]