Umlawuli weGranite Tri Square
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Umlawuli weSikwere seGranite Tri Precision
Sizabalazela phambili kwiindlela eziqhelekileyo zoshishino, sizama ukuvelisa isikwere esinobunxantathu segranite echanekileyo ekumgangatho ophezulu. Sisebenzisa igranite emnyama yaseJinan eyona ilungileyo njengezinto eziluhlaza, isikwere esinobunxantathu segranite echanekileyo sisetyenziselwa ukujonga ii-coordinates ezintathu (oko kukuthi i-X, i-Y kunye ne-Z axis) yedatha ye-spectrum yezinto ezenziwe ngomatshini. Umsebenzi weGranite Tri Square Ruler uyafana neGranite Square Ruler. Inokunceda umsebenzisi wesixhobo somatshini kunye noomatshini ukuba enze uhlolo lwe-engile yasekunene kunye nokubhala kwiindawo/izinto zokusebenza kunye nokulinganisa i-perpendicular yeendawo.