Re ke ke ra hlahisa lihlahisoa tse tloaelehileng tsa khalase feela, empa hape re hlahisitse theknoloji ea ho roala. Khalase e koahetsoeng ke sehlahisoa se secha sa likhalase tsa khalase tse ntlafalitsoeng lilemong tsa morao tjena, tse sebelisetsoang marang-rang a marang-rang a hasana. Ka boits'oaro bo botle haholo, basebelisi ba bangata ba e hlokometse haholo.

Moriri oa khalase o koahetsoeng o 'nile oa phekoloa ka lisebelisoa tsa boleng bo holimo holim'a tsona, ka hona tsa beha likarolo tse ntle boleng. Khamphani ea rona e hlahisitse sehlahisoa sena se ikhethileng kamora ho monya mahlale a tsoetseng pele ho tsoa linaheng tse ling mme e na le likarolo tse latelang tse molemo:
Khalase ea khalase e koahelang bokaholimo ha ho bonolo ho senyeha. Ts'ebetsong ea polokelo le ts'ebeliso, likhalase tsa khalase tseo bokaholimo ba tsona bo leng bonolo ho ba mongobo li sepakapakeng se nang le mongobo, E lebisa ho hasaneng ha leseli, ka hona e susumetsa ponahalo e tobileng.

Lihlahisoa tsa khalase tse koahetsoeng ke khalase ke mofuta oa lintho tse phelang tse ka kopanang hantle le thepa ea ho roala tsela. Ha e ntse e hasoa tseleng ea graticule, ha ho bonolo ho e tsoa, ​​E na le matla a ho itšireletsa a matla haholo a sebelisitsoeng ho roala graticule ea lintho tse bonahalang tse sa fetoheng (ho kenyelletsa le lintho tse koahelang metsi) mme e ka boloka litlamorao tse bobebe nako e telele.

Mahlaseli a khalase a koahetsoeng a na le khokahano e ntle le thepa ea ho roala tseleng, likaroloana tsa likaroloana li ka laoloa kamora hore surfacer e hasane ka bongata bo loketseng ba li-galss lifahleho tse netefatsang phello ea ponahalo ea graticule.

Mahlaseli a khalase a koahetsoeng a na le mokelikeli o motle, o nang le tšobotsi ea o sa thibeleng.