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- reduction, quasi derivative, Bessel function, Cauchy matrix, method of eigenfunctions 1
- reduction, quasi-derivative, Cauchy matrix, Fourier method, method of eigenfunctions 1
- Refugees. 2
- regional projects portfolios, vital activity safety 2
- regulatory body 1
- rehabilitation 2
- remote learning 1
- Rescue Worker 1
- Rescuer 1
- resonance 1
- REST 1
- restructuring, radon, uranium, thorium, monitoring of radioactivity 1
- rhetorical classes 2
- rhetorical competence 2
- risk 1
- risk assess-ment 1
- Risk assessment 1
- risk assessment 2
- risk, hazardous factors, CFAST, integrated model, public buildings, mapping 1
- risks 2