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IO Information Outlet (LAN) 信息插座(LAN)

IO Intermon Oxfam (Spain) Intermon牛津饥荒救济委员会(西班牙)

IO Imperial Order (gaming) 帝国秩序(游戏)

IO Inventory Objective 存货目标

IO Indian Orchard (Springfield, MA) 麻萨诸塞州斯普林菲尔德的果园(印度)

IO Intelligence Oversight 智能监督

IO Instant Outlining 即时概述

IO InspecciÒn Ocular (Guatemala, police task force) InspecciÒn Ocular (Guatemala, police task force)

IO Initial Only 最初只有

IO iodine monoxide 碘浓度

IO Individually Optimum 单独最佳

IO Inside Out (Frisbee throw) 翻转(叵蛞)

IO Inspectie van het Onderwijs (Dutch) 她Onderwijs Inspectie(荷兰)的货车

IO Inboard Outboard (boat drive system) 传动系统内外侧(船)

IO Insignificant Other 微不足道的其他

IO Inexperienced Operator 缺乏经验的操作员

IO Idiot Operator 傻瓜操作员

IO Industrial-Organizational (Psychology) Industrial-Organizational(心理)

IO Installing Officer (International Order of DeMolay) 警官(国际秩序的安装DeMolay)

IO Independent Observations 独立观察