Fáddáevttohusat
- Standards 17 bohtosa
- Testing 9 bohtosa
- Electronics 8 bohtosa
- Diagnosis, Radioscopic 7 bohtosa
- Equipment and supplies 7 bohtosa
- Image intensifiers 7 bohtosa
- Medical technology 7 bohtosa
- Safety measures 7 bohtosa
- Lasers 5 bohtosa
- Laser communication systems 3 bohtosa
- Optical instruments 3 bohtosa
- Optics 2 bohtosa
- Telecommunication 2 bohtosa
- Electrical engineering 1 bohtosa
- Explosionproof electric apparatus and appliances 1 bohtosa
- Fiber optic cables 1 bohtosa
- Flammable gases 1 bohtosa
- Free space optical interconnects 1 bohtosa
- Image processing 1 bohtosa
- Industrial safety 1 bohtosa
- Information technology 1 bohtosa
- Optical radiometry 1 bohtosa