Ji tɛ se ka don nɔnɔ minnu na, olu bɛnnen don baarakɛcogo ma minnu bɛ ji mabɔ, i n’a fɔ minɛnw walima sigidaw la sigida kɛrɛnkɛrɛnnen suguya caman na, i n’a fɔ kɔgɔjida la ɛntɛrinɛti, ji-sɛnɛ, kuran-sɛnɛ, nɛgɛso-sɛnɛ, ani petoroli-sɛnɛko. O sɛbɛnw kɔnɔ, ninnu dɔw ye ninnu ye:
1. Kɔgɔjida laminiko ɲɛnabɔli .
Kɔgɔ, ji, ani fɛn wɛrɛw minnu bɛ kɛ kɔgɔjida lamini na, olu bɛ fanga sɔrɔ kosɛbɛ, o b’a to ji tɛ se ka kɛ fɛn minnu na, olu nafa ka bon kosɛbɛ kɔgɔjida la ɛntɛrinɛti ni jiko ɛntɛrinɛti porozɛ wɛrɛw la.
2. Jiko ɲɛnabɔli .
Ji tansiyɔn ni ji min bɛ ji la, o ka bon kosɛbɛ, wa ji tɛ se ka ji bɔ cogo min na, o bɛ ji jiginni ni a bɔli bali kosɛbɛ.
3. Kuranko ɲɛnabɔli .
Jatebɔ kɛsu, kabali dɛmɛnanw, ani sanfɛ{0}}voltage switches in power engineering, olu bɛ ji tɛ se ka don minnu na walasa ka u jɔ walasa ka sabatili ni dannaya sɔrɔ.
4. Nɛgɛso baara .
Nɛgɛso baarakɛlaw ka yɛrɛyɛrɛ ni u yɛrɛyɛrɛli ka bon kosɛbɛ, wa ji tɛ se ka lajɔ kosɛbɛ.
5. Petrokimiki injiniyɛri .
Funteni caman, tansiyɔnba, ani sigida nɔgɔlen minnu bɛ petoroli dilanni na, olu fana bɛ kɛ ni jimafɛnw ye minnu tɛ ji bɔ.