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Ụkwụ bọọdụ

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Ụkwụ bọọdụ ma ọ bụ ụkwụ bọọdụ bụ otu ihe atụ maka olu osisi na United States na Canada. Ọ hà nhata olu bọọdụ dị otu ụkwụ (305 mm) n'ogologo, otu ụkwụ (305 mm) n'obosara, na otu anụ ọhịa (25.4 mm) n'ọkpụrụkpụ..

Enwere ike ịbelata ụkwụ bọọdụ dị ka FBM (maka “ụkwụ, nha bọọdụ”), BDFT, ma ọ bụ BF. Enwere ike idebe otu puku ụkwụ bọọdụ dị ka MFBM, MBFT, ma ọ bụ MBF. N'otu aka ahụ, otu nde ụkwụ ụkwụ nwere ike ịdebiri dị ka MMFBM, MMBFT, ma ọ bụ MMBF.

Ruo n'afọ 1970, na Australia na New Zealand, a na-eji okwu super foot na superficial foot eme ihe n'otu ihe ahụ. [1]

Otu ụkwụ bọọdụ bụ:

  • 1 ft × 1 ft × 2 in  
  • 12 in × 12 in × 1 in
  • 144 in3
  • 1/12 ft3 
  • ≈ 2,360
  • ≈ 2.36 lita
  • ≈ 0.00236 ma ọ bụ steres
  • 1/1980 Petrograd Standard nke bọọdụ
Otu bọọdụ abụọ site na anọ

A na-eji ụkwụ osisi tụọ osisi siri ike (tupu ihicha na nhazi n'enweghị mgbanwe) ma ọ bụ osisi a kpara akpa/n'elu ya. Otu ihe atụ nke osisi a na-eme atụmatụ bụ osisi softwood "abụọ na anọ" nke nnukwu ndị na-ere osisi na-ere, nke a na-akpọ 2 na 4 sentimita (50 mm × 100 mm). 2 × 4 bụ n'ezie naanị  1+1⁄2 na × 3+1⁄2 na (38 mm × 89 mm), mana akụkụ maka osisi mgbe a zụrụ n'ùkwù ka nwere ike ịnọchite anya dị ka osisi 2 × 4 zuru ezu, n'agbanyeghị "ọkọlọtọ" nwere ike ịdị iche n'etiti ndị na-ere ahịa. Nke a pụtara na ọnụ osisi na-agụnye oghere ikuku gburugburu osisi anụ ahụ mgbe ị na-agbakọ ụkwụ ụkwụ n'ọnọdụ ụfọdụ, ebe ezi nha nke "ụkwụ osisi" kwesịrị ịdị oke na akụkụ ahụ nke osisi ahụ.

Maka osisi a haziri ahazi, ụkwụ osisi na-ezo aka n'ịdị arọ na obosara nke osisi, nke a gbakọrọ na ụkpụrụ na nha ya tupu ịcha na ịhazi. N'ebe a, a na-eji ogologo ahụ eme ihe.

Rịba ama: lee osisi dimensional maka mkparịta ụka zuru oke banyere mmekọrịta nke akụkụ n'ezie na nke aha. N'ụzọ dị mkpirikpi, maka osisi ndị dị nro, iji gbanwee aha ka ọ bụrụ nke a na-ahụkarị, wepụ inch (6 maka nha dị n'okpuru 2 sentimita; wepụ inch (13 maka akụkụ karịrị 2 sentimita na n'okpuru 8 sentimita; ma wepụ inch (19 maka ogo buru ibu.    Usoro a dị mgbagwoju anya maka osisi siri ike.

 

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  1. Rowlett. How Many? A Dictionary of Units of Measurement. Retrieved on 2007-01-30.