JMdictDB - Japanese Dictionary Database

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jmdict 2429650 Active (id: 136761)
口径比
【 こうけいひ 】
1. [n]
▶ aperture ratio (inverse of the f-number)
▶ relative aperture
Cross references:
  ⇒ see: 2429640 Ｆナンバー 1. f-number



History:
1. A 2009-02-17 00:00:00 
  Comments: 
Entry created

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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.