JMdictDB - Japanese Dictionary Database

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jmdict 2429650 Active (id: 136761) 
2429650 jmdict A [id=136761]
口径比
こうけいひ
[1][n]
  aperture ratio (inverse of the f-number); relative aperture
  [see=2429640・Ｆナンバー[1]]


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JMdictDB is an open-source Postgresql database and Python API for managing Japanese dictionary data developed by Stuart McGraw. More information at http://edrdg.org/~smg/. Please report software problems at https://gitlab.com/yamagoya/jmdictdb/issues or email to jmdictdb@mtneva.com.