Itanura rya Hoffman ryo kurasa no kumisha amatafari y'ibumba

Itanura rya Hoffmann ryerekeza ku itanura rihoraho rifite imiterere ya tunnel ya buri mwaka, igabanijwemo gushyushya, guhuza, gukonjesha mu burebure bwa toni. Iyo urasa, umubiri wicyatsi ushyizwe mugice kimwe, ukurikirane wongeyeho lisansi ahantu hatandukanye h'umurongo, kugirango urumuri rukomeze rutere imbere, kandi umubiri unyura mubyiciro bitatu. Ubushyuhe bukabije ni bwinshi, ariko imikorere ikora ni mibi, ikoreshwa mu gucana amatafari, watts, ububumbyi bubi hamwe n’ibikorwa by’ibumba.