| CAI | Club Alpino Italiano | 意大利登山协会 |
| CAI | computer- assisted instruction | 计算机辅助教学 |
| CAI | Common Air Interface | 通用空中接口 |
| CAI | Computer Analog Input | 计算机模拟输入 |
| CAI | Computer-Aided Instruction | 计算机辅助教学 |
| CAI | Computer-Assisted Interrogation | 计算机辅助咨询 |
| CAI | Computer-Aided Issue System | 電腦輔助教學系统 |
| CAI | Continental Air Lines, Inc | 大陆航空公司[美] |
| CAI | Computer Assisted Teleconferencing | 计算机辅助远程会议 |
| CAI | Cairo | 开罗 |
| CAI | Computer-Automated Inspection | 计算机自动监测 |
| CAI | Credit Agricole Indosuez | 东方汇理银行 |
| CAI | Canadian Automotive Institute (Canada) | 加拿大汽车协会(加拿大) |
| CAI | Community Association Institute | 社区协会协会 |
| CAI | Christian Associates International | 基督教国际协会 |
| CAI | Community Associations Institute | 社区协会协会 |
| CAI | Consumer Association of Ireland | 爱尔兰消费者协会 |
| CAI | Cairo, Egypt - International (Airport Code) | 埃及开罗-国际(机场代码) |
| CAI | Commissione per le Adozioni Internazionali (Italian institute for international adoption) | 国际收养协会(意大利国际收养协会)委托人 |
| CAI | Certified Auctioneers Institute | 注册拍卖师协会 |
| CAI | Centralized Accident Investigation | 集中事故调查 |
| CAI | Commercialization Achievement Index | 商业化成就指数 |
| CAI | Center for Academic Integrity | 学术诚信中心 |
| CAI | Corporate Accountability International | 国际企业责任 |
| CAI | Cold Air Intake (automotive) | 冷空气进气(汽车) |
| CAI | Computer Applications Incorporated | 计算机应用公司 |
| CAI | Civil Aeronautics Institute | 民用航空学会 |
| CAI | Call Assembly Index | 调用程序集索引 |
| CAI | Controlled Air Incinerator | 受控空气焚烧炉 |
| CAI | Combined Arms Initiative | 联合兵种倡议 |
| CAI | Contractor Acceptance Inspection | 承包商验收检查 |
| CAI | Completion of Availability Inspection (US Navy) | 完成可用性检查(美国海军) |
| CAI | Centrale Antenne Inrichting (Dutch TV/Radio antenna company) | Centrale Antenne Inrichting(荷兰电视或无线电天线公司) |
| CAI | Container Applications International (US shipping container company) | 集装箱应用国际(美国航运集装箱公司) |
| CAI | Congregation Agudath Israel | Agudath以色列公理会 |
| CAI | Carbonic Anhydrase Isoenzymes I | 碳酸酐酶同工酶I |
| CAI | Calcium Aluminum-rich Inclusion (mineralogy) | 富钙铝夹杂物(矿物学) |
| CAI | Common Air Interface (CT2 standard) | 公共空中接口(CT2标准) |
| CAI | Clearing Account Indicator | 清算账户指示符 |
| CAI | Calcium Aluminum-rich Inclusion | 富钙铝夹杂物 |
| CAI | Child Adapted Instruction | 儿童适应教学 |
| CAI | Cubic Applications, Inc | 立方应用公司 |
| CAI | ComitÉs Antiimperialistas | ComitÉs Antiimperialistas |
| CAI | complete androgen insensitivity | 完全雄激素不敏感 |
| CAI | civil aeromedical institute | 民用航空医学研究所 |
| CAI | Central American Indian (Other) | 中美洲印第安人(其他) |
| CAI | coded aperture imaging | 编码孔径成像 |
| CAI | Customer Appreciation, Inc. | 客户感激公司。 |
| CAI | Cairo, Egypt | 埃及开罗 |
| CAI | Confederation of Aerial Industries | 航空工业联合会 |
| CAI | Combined Arms Initiatives | 联合兵种倡议 |
| CAI | Confederation of Aerial Industries (UK) | 航空工业联合会(英国) |
| CAI | Compagnia Aeronautica Italiana | 意大利航空公司 |
| CAI | Centrale Allarme Interbancaria (Italian Institute for payment alarming) | Centrale Allarme Interbancaria(意大利支付警报研究所) |
| CAI | Computer Aided Instructor | 计算机辅助讲师 |
| CAI | Computer Assisted Instruction | 计算机辅助教学 |
| CAI | Carbonic Anhydrase Inhibitor | 碳酸酐酶抑制剂 |
| CAI | Cold Air Induction | 冷空气导入 |
| CAI | Carcinogenic Activity Indicator | 致癌活性指标 |
| CAI | Central Asia Institute | 中亚研究所 |
| CAI | Club Atletico Independiente | 独立竞技俱乐部 |
| CAI | Cerebral Atrophy Index | 脑萎缩指数 |
| CAI | Child Aid International (Salem, MA) | 国际儿童援助组织(马萨诸塞州塞勒姆) |
| CAI | Critical Application Item | 关键应用程序项 |
| CAI | Cameron and Associates, Inc (Atlanta, GA) | Cameron and Associates,Inc(佐治亚州亚特兰大) |
| CAI | Computer Aided Innovation | 计算机辅助创新 |
| CAI | Central American Indian (language) | 中美洲印第安人(语言) |
| CAI | Central Approval Index | 中央审批索引 |
| CAI | Case Identification | 案例识别 |
| CAI | Controlled Auto-Ignition | 受控自动点火 |
| CAI | Child Advocacy International | 儿童倡导国际 |
| CAI | Curran Associates Inc (Red Hook, NY) | Curran Associates Inc(纽约州Red Hook) |
| CAI | Cooperative Airborne Identification | 协同机载识别 |
| CAI | Christian Assemblies International (Pentecostal Church) | 国际基督教集会(五旬节教会) |
| CAI | Computer-Aided Inspection | 计算机辅助检查 |
| CAI | composite activity index | 综合放射性指数 |
| CAI | Construction Action Item | 施工行动项目 |
| CAI | Customer Access Initiation | 客户访问启动 |
| CAI | confused artificial insemination | 混淆人工授精 |
| CAI | Counter Air Interdiction | 反空中拦截 |
| CAI | capsula interna | 内囊 |
| CAI | Corporate Affairs International | 国际公司事务 |
| CAI | Configuration Audit Inspection | 结构审计检查 |
| CAI | Concept Automation Incorporated | Concept Automation公司 |
| CAI | Confederation of Australian Industry | 澳大利亚工业联合会 |
| CAI | Computer Associates International, Incorporated | Computer Associates International公司 |
| CAI | cultural attitude inventories | 文化态度清单 |
| CAI | Computer Aided Instruction | 计算机辅助教学 |
| CAI | Cicatelli Associates Inc. | Cicatelli Associates公司。 |
| CAI | Compliance Automation, Inc. | Compliance Automation公司。 |
| CAI | Compression After Impact | 冲击后压缩 |
| CAI | Composite Affordability Initiative (next-generation rotorcraft) | 复合材料可承受性倡议(下一代旋翼机) |
| CAI | Communications, Avionics and Informatics | 通信、航空电子和信息学 |
| CAI | Chemical Accident/Incident | 化学事故/事件 |