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Deka-

Deka (xalqaro belgilanishi „da“) – Xalqaro birliklar tizimida (SI) boshlangʻich birlikning oʻn barobar koʻpayishini ifodalovchi old qoʻshimcha. Bu nom yunoncha: δέκα „oʻn“ soʻzidan kelib chiqqan[1][2]. SI tizimida qoʻllash uchun ushbu old qoʻshimcha 1960-yilda XI chi oʻlchov va tarozilar boʻyicha Bosh konferensiya (GKMV) tomonidan SI tizimini tasdiqlash bilan bir vaqtda qabul qilingan[3].

Tarixan ilk bor 1795-yilda rasman joriy etilgan; ammo juda kam hollarda ishlatilgan. 1960-yilda SI tizimi qabul qilinishidan oldin uning turli xil koʻrinishlari mavjud edi: dk, D, Da

Qoʻllanishiga oid misollar:

Yana qarang

Manbalar

  1. ↑ „Положение о единицах величин, допускаемых к применению в Российской Федерации“. Утверждено Постановлением Правительства РФ от 31 октября 2009 г. N 879. 2013-yil 2-noyabrda asl nusxadan arxivlangan.
  2. ↑ Деньгуб В. М., Смирнов В. Г.. . ISBN 5-7050-0118-5. 
  3. ↑ „Resolution 12 of the 11th CGPM (1960)“ (en). Bureau International des Poids et Mesures. 2012-yil 28-iyulda asl nusxadan arxivlangan. Qaraldi: 2015-yil 29-dekabr.

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