Sampler ya bable ndi chitsanzo chapadera cha mapepala ndi mapepala kuti ayese mayamwidwe a madzi ndi permeability ya mafuta a zitsanzo zokhazikika. Ikhoza kudula mwamsanga ndi molondola zitsanzo za kukula kwake. Ndi chida chothandizira choyesera chothandizira kupanga mapepala, kuyika, kafukufuku wasayansi ndi kuyang'anira bwino ndi mafakitale ndi madipatimenti oyendera.