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- qualification criteria 1
- quality 3
- quality of education 3
- quality of information 2
- quality of organization (management) of air transportation of tourist transportation 1
- quantization 2
- quarantine restrictions 1
- radar data 1
- radiant-convective heat exchange 1
- radio communication 1
- radio electronic means 1
- radio exchanges 1
- radio horizon. 1
- radioelectronic system 1
- radiotelephony communication 1
- Radiotelephony Phraseology 3
- raining systemformalized description 2
- range 1
- rapidity 1
- rashism 1