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- R.Jacobson 1
- R.Tagore 2
- R.W. Pohl (1884–1976) 1
- Rabindranath Tago 1
- Rabocar - Camera 1
- Radar 3
- Radiative Processes 1
- Radical scavenging 1
- Radio 1
- Radix sort 1
- Raglai 1
- RALIA ARMATA 1
- Ramayana 1
- Ranh giới 1
- Ranh giới phân chia 2
- Rare earth 3
- Rare earth elements 1
- Rau 5
- Rau an toàn 1
- Rau cải 2