Просмотр собрания по группе - Ключевые слова
- research results 1
- research work 1
- research work of students 1
- reserve 2
- reserve fund 1
- reserves and factors 1
- reserves and resources 1
- reservoir 1
- residual value 1
- resistance technology 1
- resonator 1
- resource 1
- resource conflict 1
- resource conservation 1
- resource consumption 1
- resource potential 2
- resource saving 7
- resource-saving technologies 1
- resource-saving technology 2
- resource-useful approach 1