Automatic Train Operation列车自动驾驶 Assisted Take Off助推起飞 African Timber Organization非洲木材组织 Anti-Terrorism Officer反恐官员 Andeans Treaty Organization安第斯共同市场 African Telecommunication Organization非洲电信组织 After Take-Off起飞后 Administrative Time Off行政时间休息 Alternative Treatment Order可供选择的治疗 Authorized Time Off授权的时间休息 Army Technology Objective (formerly Science and Technology Objective)军队的技术目标(原名科技目标) Automatic Take Off (dairy industry)自动起飞(乳业) Afloat Training Organization漂浮培训机构 Australian Taxation Office澳大利亚税务局 Alpha Tau Omega阿尔法陶极为重要