Waa maxay su'aasha ah: "Waxaa jira 12 troy ounces halkii troy pound, halkii ay ka ahaan lahaayeen 16 ounces halkii pound ee laga helo nidaamka caadiga ah ee avoirdupois."? Mowduuca waa culeyska Troy.
imisa garaam ayaa ku jirta hal troy ounce oo dahab ah?