Ntau tus phooj ywg nyob rau hauv kev xaiv ntawmffor tu tshuab, yuav muaj kev txhawj xeeb ntau ntxiv txog tus nqi ntawm kev ntxuav dej khov kho.
Tus nqi ntawm cov dej khov qhuav dej yog cuam tshuam nrog tus nqi ntawm cov dej khov qhuav siv ib lub sijhawm thiab lub sijhawm ntxuav ntawm ib qho khoom.
Hauv ntej, muaj peb lub ntsiab lus:
1, tus nqi ntawm cov dej khov qhuav ib lub sijhawm, cov dej khov kom qhuav ntawm cov dej khov qhuav rau ib feeb yog n (kg).
2, lub sijhawm ntxuav tau ntev, lub sijhawm xav tau rau ib qho khoom lag luam los ua kom tiav, piv txwv tias lub sijhawm ntxuav yog T (feeb).
3. Lub tsev teev tus nqi ntawm kev yuav cov dej khov qhuav yog kwv yees kom ua P (Chav nqe nqi ntawm ib kilogram).
Tu nqi=n * t * p
Cov hauv qab no yog cov dej khov kho ntim ntawm peb yj -04}, yj {} {-11}} qhuav tu machine. Koj tuaj yeem yooj yim suav cov dej khov nab kuab qhuav raws li lub sijhawm ntxuav ntawm ib qho khoom lag luam thiab cov chav nyob ntawm cov dej khov qhuav.