Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Gadziriro yakapfava yeevaporator inotenderera yakagadzirwa naLyman C. Craig. Yakatanga kutengeswa nekambani yokuSwitzerland inonzi Büchi muna 1957. Mukutsvakurudza chimiro chakajairika ndeye 1L bhenji-pamusoro unit, nepo shanduro huru (semuenzaniso, 20L-50L) inoshandiswa mumakambani ekuyedza mumabasa emakemikari ekutengeserana.  Mubvunzo: Gadziriro yakapfava yevaporator inotenderera yakatengeswa rini?
Gore ra1957