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Pilot Retort
Tus kws tsav tsheb retort yog ib qho kev sim ua kom tsis muaj menyuam retort, uas tuaj yeem paub txog kev ua kom tsis muaj menyuam xws li tshuaj tsuag (dej tshuaj tsuag, cascade, sab tshuaj tsuag), dej immersion, chav, rotation, thiab lwm yam. tsim tawm tiag.