系统软件 操作系统 释文 disk operating system, DOS 磁盘操作系统
- rubidium-vapor frequency standard
- Rubin
- Rubina Dina Ilyinichna
- Rubin-Ford effect
- Rubinsteinian school
- rubisco
- RuBP
- rubrene
- rubriblast
- rubrospinal tract
- Rubtsov Nikolay Mikhaylovich
- ruby
- ruby amplifiers
- Ruby language
- ruby laser
- ruby laser crystal
- Ruby语言
- Rubè
- Rucellai Palace
- Ruchba
- Ruchbah
- Rucheng Xian
- Ruchyev Boris Aleksandrovich
- Rudaki
- Rudd Concession