Kulowetsa ndi kubweretsa Magawo a Cucuum. Pali malo ophatikizika pamtunda uliwonse wofanana ndi digiri yosiyanasiyana yosiyanasiyana, ndiye kuti, ndiye kuti, ndiye kuti kusiyana komwe kumapangitsa kuti pakhale mphamvu yake. Kuyambira pano, kuchuluka kwa mphamvu yotulutsa ndikofanana ndi kuchuluka kwa mphamvu.
Malinga ndi QC / T307-1999 "Mikhalidwe yaukadaulo yolimbikitsira poyeserera ndi 66.7 ± 1.3Ka (500 ± 10mmhmhg). Kulowetsa ndi mitundu yotulutsa ya vacuum ndi kofunikira ndi njira yowerengera. Malinga ndi mfundo yogwira ntchito yolimbikitsira, magawo awiri okhala ndi mawonekedwe amatha kuyandikira: Mphamvu yolowera yomwe ikugwirizana ndi gawo lalikulu lamphamvu ndi ndalama; Chiwerengero cha mphamvu yotulutsa ku mphamvu yolowera isanafike pointum yayikulu, ndiye kuti kuchuluka kwa mphamvu
