H-gawo zitsulo ndi mtundu wa gawo chuma mkulu-mwachangu mbiri ndi wokometsedwa gawo m'dera kugawa ndi wololera mphamvu kulemera chiŵerengero.Amatchulidwa chifukwa gawo lake ndi lofanana ndi chilembo cha Chingerezi "H".Chifukwa chakuti mbali zonse za zitsulo za H-gawo zimakonzedwa pakona zolondola, zitsulo za H-gawo zimakhala ndi ubwino wa kukana kupindika mwamphamvu, kumanga kosavuta, kupulumutsa mtengo ndi kulemera kwapangidwe kopepuka kumbali zonse, ndipo kwagwiritsidwa ntchito kwambiri.