ra

RA Ration Allowance 粮食定量

RA Regulatory Authority 监管当局

RA Regional Association 区域协会

RA Requirements Analysis 需求分析

RA Reduction in Area 断面减少

RA Radon n. 氡

RA Rear Admiral n. 海军少将

RA Rapport n. 关系, 同意, 一致

RA Remote Assistance 远程援助

RA Reserve Affairs 预备役事务

RA Republic Act (Philippines) 共和国法案(菲律宾)

RA Red Armageddon (gaming clan) 红色哈米吉多顿(游戏族)

RA Right Ascension (astronomy) (天文学)

RA Reinforced Alert 增强警惕

RA Red Army (counterstrike gaming clan) 红军(counterstrike游戏族)

RA Realm Ability (Dark Age of Camelot on-line game) 王国的能力(黑暗时代到在线游戏)

RA Research Assistant/ship 研究助理/船舶

RA Router Arbiter 仲裁者路由器

RA Regia Aeronautica (Italian Royal Air Force) 意大利Aeronautica(意大利皇家空军)

RA Recruit Alliance 招募联盟