1.Dukurikije ubuyobozi bw’umuyaga ushizwe ku mpera y’ipiston, ushobora guca mu nzira y’ugukina n’ugukina kabiri. Igikoko kimwe gusa c’ugukina clilindre imwe gusa y’inyigisho giterwa n’umuvuduko w’umuyaga, piston isubiramwo n’inguvu z’impeshi canke uburemere bw’isi; Ipistoni y’igihimba c’umubiri gikora kabiri kirarangizwa n’umuyaga upfutse.
2.Ku bijanye n’ibiranga imiterere, bishobora guca mu gice c’umubiri citwa piston, igiti c’umukaraba, igiti c’umukaraba, gaze- igiti co gutera ivyatsi n’ibindi.
3.Ku bijanye n’uburyo bwo gushiramwo, bishobora guca mu gice c’imbere c’ibarabara ry’ibarabara, igiti c’umukaraba, igicapo c’ibara ry’ibara ry’agahama n’ibara ry’ibara ry’ibara ry’agahama.
4.Ku bijanye n’igikorwa c’igihimba c’umubiri, gishobora guca mu gice c’umubiri gisanzwe n’igihimba c’umubiri kidasanzwe. Igikoko c’umubiri gisanzwe kivuga cane cane ku bijanye n’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umubiri w’umuntu; Ivyuma bidasanzwe birimwo gaze- igikoresho co gutera ivyatsi, igihimba c’umubiri c’ubwoko bwa film, igihimba c’umubiri c’umubiri, igikarabiro co gutera, gutera intambwe, igihimba c’umubiri gizunguruka, n’ibindi.
