--- Mu rwego rwikoranabuhanga rigezweho, ibisubizo byo kuzigama ingufu bigenda bigenda biba ngombwa kubucuruzi no mu ngo. Igisubizo kimwe nkibi ni metero ya gaze ya argon, igira uruhare runini mugupima itemba rya gaze ya argon mugihe igabanya ingufu. Iyi ngingo igamije gutanga ubushishozi bwingirira akamaro n'imikorere yo kuzigama ingufu argon ga.