Uburyo bwo gupima urugi rwa lift ya rugi hejuru sill
Mugabanye uburebure bwapimwe kuri 2 no kuzenguruka kugeza hafi kugirango ubone agaciro ko gufungura umuryango (urugero: 1690 ÷ 2 = 845mm, ni 800 gufungura imiryango)