3. Whakaritenga: Ko te nuinga o nga mea kua whakaritea kia rite ki te rahi o te ahua o te waahanga e whakaratohia ana e te kaihoko.1.momo matau;2. momo kapo;3. momo whakakiki;4. momo piki o roto;5. momo hiki;6. momo hopu;7. te huri huri kapo (poka 90°, 180° ranei) 0;8. hauhau adsorption;9. Ko te hurihanga whakahuri (pore 90°, 180° ranei) me etahi atu, kua tohua, kua whakawhanakehia, kua hoahoatia, kua pai te whakamahi.
4. Kaihautū: te nuinga tito o rango taurite me te mārō maha-whakaweto cantilever, me nga tawhā matua he hiki hiki me te radius ratonga.