H-gawo zitsulo ndi gawo chuma ndi mkulu-mwachangu mbiri ndi wokometsedwa kwambiri gawo gawo kugawa ndi wololera mphamvu chiŵerengero cha kulemera.Amatchulidwa chifukwa gawo lake ndi lofanana ndi chilembo cha Chingerezi "H".Chifukwa chakuti mbali zonse za zitsulo za H-gawo zimakonzedwa pa ngodya zolondola, zitsulo za H-gawo zimakhala ndi ubwino wokhotakhota mwamphamvu, kumanga kosavuta, kupulumutsa mtengo ndi kulemera kwapangidwe kopepuka kumbali zonse, ndipo zakhala zikugwiritsidwa ntchito kwambiri.