Mochini oa ho etsa liporo ke sesebelisoa sa tlhahiso se sebelisetsoang ho etsa liporo kapa litselana tsa lits'ebetso tsa terene. Mochini o sebelisa letoto la lirolara ho kobeha le ho etsa khoele ea tšepe ka har'a boholo bo lakatsehang ba pina le sebopeho ka ho nepahala ho phahameng le ho tsitsa. Mokhoa ona o kenyelletsa ho fepa tšepe e sephara ka letoto la lirolara tse etsang butle-butle tšepe hore e be profil e batloang. Liporo tse hlahisoang li sebelisoa mekhoeng e fapaneng ea lipalangoang, ho kenyeletsoa metro, literene le literempe.
Na u batla mokhoa o ka tšeptjoang le o theko e boima oa ho hlahisa likarolo tsa terene tsa boleng bo holimo? Mechini ea rona ea ho etsa li-orbital roll e fana ka tharollo e phethahetseng. Thepa ea rona e etselitsoe ho etsa likarolo ka matla, ho tšoarella le ho tsitsa ho fihlela litlhoko tsa merero ea lipalangoang tsa boholo bohle.