Retransmission Time Out重传超时 regional tourist organization区域旅游组织 Ready to Order准备点菜 round trip operation往返作业 Representative Task Order (government contracting)为代表的任务(政府契约) Regimental Tactical Officer (United States Military Academy)团的战术指挥(美国陆军军事学院) Registered Training Organisation (Australia)注册的培训机构(澳大利亚) Research & Technology Organization研究及技术组织 Regional Transportation Organization区域交通组织 Road Transport Office (India)道路交通办公室(印度) Returned to Owner (lost or stolen items)回到主人(丢失或被盗项目) Recruit Training Officer新兵训练军官 Regional Transmission Organization区域传播机构 Regenerative Thermal Oxidizer蓄热氧化物 Regional Transport Office区域交通办公室