Whakamahia te huihuinga pana uta Sf-e toru-teihana, he wehewehe mohio i waenga i ngā raina taumai me ngā raina puta maui me matau, he iti noa te hoahoa hanganga, he kaha te mahi whirihoranga taura, tae atu ki te 8 raina taumai me ngā raina puta. Ehara i te mea ko ngā painga o tēnei pouaka peka anake kei te pupuri i te pouaka tohatoha muka, engari kei a ia anō hoki ētahi o ngā āwangawanga o te waeine matua mowhiti. He taputapu tino pai mō te whakawhiti whatunga tāone. He iti te rahi, kāore he tiaki, he pai te ohanga hangarau, he teitei te pono, he ngāwari te tāutanga me te watea te whakamahinga.

Me te SF. Ko ngā āhuatanga o te pouaka peka hiko o te pana utaina: e toru ngā wāhanga i roto i te wāhanga, ko tētahi he hiri. Kua whakakiia te wāhanga hiri ki te hau whanariki hexafluoride pēhanga iti, ā, he maha atu i te kotahi te rōpū pana utaina i roto. Kei roto i te wāhanga taraiwa whakahaere te tikanga whakahaere o te pana utaina. He aho pou hiko me ngā pito hiko i roto i te wāhanga waea hiko, ā, kua honoa ngā pito hiko ki te pana utaina. Ko te pana utaina i roto i te wāhanga pana utaina hiri he pana utaina whakapā hihiri me te tūmau. E toru ngā paparanga o te rakau hurihuri o ia pana utaina i runga i te papa āhua-pā huri noa i te tuaka. Kei roto i te rōpū o ngā wāhanga e toru ngā taura i roto i te wāhanga taura, ā, kua tohatohahia ngā pito hiko e toru o ia rōpū i roto i te whakarara me te whakarara ki raro. Kua honoa poutū ngā pou pito o ia nakahi hiko ki ngā waea toronga hiko, ā, he whakarara ngā aho pou toronga hiko e toru ki a rātou anō. He paipa pēhanga kei te wāhanga hiri.