Ib phaus txhais li cas?
Ib phaus txhais li cas?

Video: Ib phaus txhais li cas?

Video: Ib phaus txhais li cas?
Video: Qhia txhais 50 zaj npau suav tias yog dab tsi part 3 15 Sep 2019 2024, Hlis ntuj nqeg
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Phaus . Phaus , chav tsev ntawm avoirdupois hnyav, sib npaug li 16 ooj, 7, 000 nplej, lossis 0.45359237 kg, thiab ntawm troy andapothecaries 'qhov hnyav, sib npaug 12 ooj, 5, 760 nplej, lossis 0.3732417216 kg. Roman yawg koob ntawm niaj hnub phaus , thelibra, yog lub hauv paus ntawm cov ntawv luv lb.

Ib yam li ntawd, nws nug, 1 phaus txhais li cas?

1 : ib qho ntawm ntau yam ntawm qhov hnyav thiab qhov hnyav tshwj xeeb: ib chav tsev tam sim no feem ntau siv ntawm cov neeg hais lus Askiv sib npaug rau 16 avoirdupois ounces lossis 7000 nplej lossis 0.4536kilogram - saib Cov Khoom hnyav thiab ntsuas. 2a: Lub tsev nyiaj txiag tseem ceeb ntawm United Kingdom. - hu ua phaus sterling.

Tsis tas li ntawd, puas yog lbf tib yam li LB? A phaus yog ib chav ntsuas ntawm qhov hnyav uas siv hauv kev ntsuas. Ib lbf ua ,lub a phaus quab yuam, yog lub zog gravitational exerted los ntawm ib qho teeb meem ntawm lub ntiaj teb. Yog li, nws yog lub zog exerted los ntawm qhov loj ntawm ib avoirdupois phaus . Yog li ntawd, 1 lbf ua ,or ib phaus quab yuam, tuaj yeem ntsuas lossis hloov pauv hauv Newtons.

Tom qab, lo lus nug yog, yog vim li cas ib phaus 16 ooj?

Lub London phaus yog cov Hansa, raws li siv nyob rau hauv lawv ntau yam trading chaw. Lub London phaus yog nyob ntawm 16 ooj , cwb ooj muab faib ua tus pej thuam ooj . Ib London phaus yog sib npaug rau 7,200 troy nplej ( 16 troy ounces ) los yog sib npaug, 10, 240 towergrains ( 16 pej thuam ounces ).

Koj sau li cas lbs?

Yog li ntawd koj yuav tsum tsis txhob sau " lbs "Koj yuav tsum technically tsis xav tau lub sijhawm tom qab" lb " tog twg los, tshwj tsis yog nws yog qhov kawg ntawm kab lus. lb "los ntawm Latin libra, uas yog nws tus kheej luv rau libra podo, los yog "phaus phaus." Thiab nyob rau hauv txhua rooj plaub, lub plural ntawm libra yuav belibrae, tsis libras.

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