KGG ikoresha ikomatanya rya moteri itwara imipira cyangwa umukandara hamwe na sisitemu yo kuyobora umurongo.Ibice byoroheje kandi byoroheje birashobora guhindurwa kandi birashobora guhinduka muburyo bworoshye sisitemu nyinshi, bigatuma bikwiranye ninganda nyinshi zikoreshwa mu nganda.KGG ifite umurongo mugari wumurongo wo guhitamo kugirango uhitemo: Yubatswe-muyobora inzira 、 KK ikora cyane 、 KK yuzuza moteri yuzuye igizwe na moteri imwe axis PT ihindagurika ryikurikiranya rya sisitemu, ZR axis nibindi.