II Island 岛屿I Index 指数I Interest 利息，兴趣IA Intermediate Altitude 中间高度IA Iowa 衣阿华州（美）IAA Initial Approach Altitude 起始进近高度IAA Intermediate Approach Area 中间进近区IAC International Air Convention 国际航空公约IAC Instrument Approach Chart 仪表进近图IACAInternational Air CarrierAssociation国际航空公司协会IAF Initial Approach Fix 起始进近定位点IAF Indian Air Force 印度空军Iraqui Air Force 伊拉克空军IALInstrument Approach andLanding Chart仪表进近与着陆图IAO IN And Out Of Clouds 出入云中，云层飞行IAP Istrument Approach Procedure 仪表进近程序IAP International Airport 国际机场IAP Initial Approach Procedure 起始进近程序IAPCH Initial Approach 起始进近IAR Intersection Of Air Routes 航路交叉点IAS Indicated Airspeed 指示空速IATAInternational Air TransportAssoci-ation国际航空运输协会IATSC International AeronauticalTeleco-mmunication SwitchingCenter国际航空电信中继中心IAW In Accordance With 按照,与……一致IB Ibidem 此处同上（拉丁语）I/B Inboard 侧，机IBN Identification Beacon 识别灯标IC Integrated Circuit 集成电路I/C Inspection/Check 检验/检查I/C In Charge Of 负责，主管ICAC Initial Cruise Altitude Capability 起始巡航高度能力International Civil Aircraft国际民用航空器标记ICAMMarkingInternational Civil Aviation国际民航组织ICAOOrganizationICC Inner Combusion Chamber 燃烧室ICD Interface Control Document 互相控制文件ICE Icing 结冰ICE Dry Ice 干冰ICE Iceland 冰岛ICS Inter-Communication System 部通讯系统ICU Instrument Comparator Unit 仪表比较器组件ICU Interface Control Unit 交连控制组件ID Identification 识别ID Idem 同上（拉丁语）ID Dinar 第纳尔（货币单位）ID Identify 鉴定，辨认ID Inside Diameter 径IDB Intergrated Data Base 综合数据库IDD International Direct Dialing 国际直拨IDENT Identify 辩认，鉴定IDENT Identification 识别IDG Integrated Drive Generator 整体驱动发电机IDN Indonesia 印度尼西亚IDNT Identification 识别IDR Instrument Departure Route 仪表离场路线IDR Indonesian Rupiah 印尼卢比（货币单位）IDS Integrated Display System 综合显示系统IDS Interactive Display System 相互作用设计系统IDU Integrated Display Unit 综合显示组件i.e. Id Est, That is 即，也就是IE Ireland 爱尔兰I/E Import And Export 进出口Institute of Electrical and电气和电子工程学院IEEEElectronic EngineersIEM Interational Express Mail 国际快邮Instrument,Electrical Radio and仪表，电气，无线电和电子I.E.R.A.AvionicsIF Intermediate Frequency 中频IF Intermediate Fix 中间定位点IF Initial Fix 起始定位点IF Inflight 在飞行中I/F Instrument Flight 仪表飞行IFA Integrated Fault Analyzer 综合故障分析器International Federation Airline驾驶员协会国际联合会IFALPAPilot AssociationInternational Federation of空通管制员IFATCATrafficController Association 协会国际联合会IFC Instrument Flight Center 仪表飞行中心Identification of Friend or Foe敌我识别器IFEDeviceIFMN Information 情报，消息，信息，资料IFMS Integrated Management System 综合管理系统IFR Instrument Flight Rules 仪表飞行规则IFR Infrared 红外的International Frequency国际频率注册局IFRBRegistration BoardInternational Flight Service国际飞行服务站IFSSStationIntegrated Functional Test综合功能检测系统FTSSystemIFUN If Unable 如不能IG Imperial Gallons 英加仑IGA International General Aviation 国际通用航空IGB Inlet Gearbox 入口齿轮箱IGN Iguiter 点火箱IGN Ignition 点火IGN Ignore 不理睬IGPM Imperial Gallons Per Minute 英加仑IGR Igitur 所以（拉丁语）IGS Instrument Guidance System 仪表引导系统IGS Integrated Graphic System 集成图形系统IGV Inlet Guide Valve 进气道导向活门IGV Inlet Guide Vanes 进气道导向叶片IGVA Inlet Guide Vane Actuator 进气道导向叶片作动器IHP Indicated Horse Power 指示马力IHPH Indicated Horse Power Per Hour 指示马力/小时I/L Import Licence 进口执照IL Illinois 依利诺斯州International Language For国际航空用语ILAAviationILEF Inside Leading Edge Flaps 侧前缘襟翼ILES Inside Leading Edge Station 侧前缘襟翼站位ILLUM Illuminate 照明、亮ILLUS Illustrate 图解ILLUS Illustration 图解ILM Independent Landing Monitor 独立着陆监视器ILO In Lieu Of 代替ILS Instrument Landing System 仪表着陆系统ILS Integrated Instrument System 综合着陆系统ILS Back Beam Only(No Glide仅有ILS背台航道（无下滑道）ILS BBPath)ILS C ILS Autopilot Coupled Approach ILS自动驾驶耦合进近ILS CP ILS Control Panel ILS控制板ILS H Handfloum ILS Approach 人工飞行ILS进近IM Inner Marker 指点标IM Import 进口IMBAL Imbalance 不平衡Instrument Meteorological仪表气象条件IMCConditionsIMD Immediate(Ly) 立即IMDIAT Immediate(Ly) 立即IMDT Immediately 立即IMG Immigrate 移民IMG Immigration 移民局IMG Imperial Gallons 加仑IMI Instrument Memory Indicator 仪表存储指示器IMLI Import Licence 进口执照IMM Immigration 移民局IMM Inflight Maintenance Message 飞行中维护信息IMM Immediately 立即IMMEDT Immediate 立即IMMEDT Immediately 立即IMMG Immigration 移民局IMMIG Immigrant 移民IMMIG Immigration 移民局Intergrated Maintenance Monitor综合维护监控系统IMMSSystemIMO International Money Order 国际汇票IMN Indicated Mach Number 指示马赫数IMP Important 重要的IMP Import 进口IMP Improve 改进，变好IMP Imperial 英制的IMPCE Importance 重要性IMP GAL Imperial Gallons 英加仑IMPER Imperative 紧急的，强制的IMPO Impossible 不可能IMPOSS Impossible 不可能IMPR Improve 改进，变好，好转IMPR Improvement 改进，改善IMPROV Improve 改进，变好IMPSBL Impossible 不可能IMPT Important 重要的IMPT Import 进口IMPV Imperative 紧急的，强制的IMPVD Improved 改进的，变好的IMPVMT Improvement 改进，改善IMR Indicated Mach Reading 指示马赫数Information Management信息管理系统IMSSystemIMT Immediately 立即IMTA Intensive Military Training Area 集中军事训练区IN Inch 英寸N Infant 婴儿IN Inspection 检验，检查IN Input 输入IN India 印度IN Interest 利息，兴趣I/N Inventory Number 清单，INA Initial Approach 起始进近INABL Inability 无能力的INADQT Inadequate 不适合的INB Inbound 进场，向台INB Inboard 机，侧INBD Inboard 机，侧INBD Inbound 进场，向台INBND Inbound 进场，向台INC Include 包括INC Including 包括INC In Cloud 云中INC Incorporated 并入的，联合的INC Increase 增加IN/C In Charge 负责，主管INCD Include 包括INCDT Incident 事件INCE Insurance 保险INCERFA Uncertainty Phase 情况不明阶段INCL Include 包括INCL Including 包括INCL Inclose 封入INCL Inclosure 信封INCLDG Including 包括INCLZ Inclose 封入INCOMG Incoming 进来的，进场的INCON Interconnect 交连INCOR(R) Incorrect 不正确的，错误的INCP Incomplete 未完成的，不完全的INCPLT Incomplete 未完成的，不完全的INCR Increase 增加INCRCT Incrrect 不正确的，错误的INCRS Increase 增加IND Indicator 指示器IND Indicate 指示，表示IND Indication 指示，表示IND Independent 独立的IND Index 指数IND Industry 工业IND India 印度INDEF Indefinite 无限期的，不明确的INDEM Indemnity 赔偿INDENT Indenture 合同，契约INDIR Indirect 不直接的，间接的INDIV Individual 个别的INDR Indoor 室IND SENS Indicator Sensitivity 指示器灵敏度INE Import and Export 进、出口INEV Inevitable 不可避免的INF Interface 交连，交接面INF Information 情报，资料，信息INF Inferior 低劣的INFC Interface 互联，交连，交接面INFD Informed 已通知INFLT Inflight 飞行中INFM Inform 通知，告知INFM Information 情报，资料，信息INFML Informal 非正式的INFO Information 情报，资料，信息INFO Inform 通知，告知INFR Infrared 红外的INH Inhibit 抑制INHAB Inhabitants 居民INHB Inhibit 抑制，禁止INHIB Information 抑制，制动，禁止INHG Inches of Mercury 英寸水银柱IN-IB Inch-Pound 英寸/磅INIT Initiate 起始INIT Initialization 起始，初始化INJC Injection 注射INLB Inch-Pound 英寸/磅INLK Interlock 联锁INO Indian Ocean Region(ICAO) 印度洋地区（国际民航组织）INOP(V) Inoperative 不工作，无效INP If Not Possible 如不能INP Input 输入INPH Interphone 话机INPR In Progress 在进行中INQ Inquiry 询问，询价INQR Inquire 询问，调查INR Inner 部的，侧的INR Indian Ruppee 印度卢比（货币单位）INS Nertial Navigation System 惯性导航系统INS Inches 英寸INS Insurance 保险INS Insurance 保险INSDU INS Display Unit 惯导系统显示组件INSIG Insignificant 无意义的INSL Insulated 绝缘的INSP Inspect 检验，检查INSP(N) Inspection 检验，检查INSPR Inspector 检查员INSR Insurance 保险INSRT Insert 插入INST Instant 紧急的，本月的INST Instrument 仪表INST Install 安装INST Installation 安装，设备INSTD Instead 代替INSTL Install 安装INSTL Installation 安装，设备INSTMT Instrument 仪表INSTNS Instructions 说明，指示INSTR Instrument 仪表INSTR Instruction 说明，指示INSUF Insufficient 不足的INSUL Insulated 绝缘的，保温的INSUL Insulation 绝缘，保温INT Intersection 交叉点INT Interest 利息，兴趣INT International 国际的INT Intermittent 间歇的INT Interrupt 中断INT Intake 入口，进气道INT Intensity 强度INT Interphone 话机INT Internal 部INT Integral 整体的INTAM Internal Notices to Airmen 部航行通告INTC Interconnect 交连INTC Intercept 截获，切入INTCHBLE Interchangeable 可交替的，可互换的INTCHG Interchange 互换，交替INTCON Interconnection 通INTEG Integrator 积分器INTER Intermittent 间歇的INTER Interrupt 中断，打扰INTER Internal 部的INTERCOM Intercommunication 通，话INTERN International 国际的INTERP Interpreter 翻译INT/F International Fare 国际票价INTFC Interface 交连，交接面INTFC Interference 干扰INTIMN Intimation 通告INTK Intake 入口，进气道INTL International 国际的INTL Initial 起始的，开始的INTLK Interlock 联锁INTMD Intermediate 中间的INTMT Intermittent 间歇的INTN Intention 打算，意向INTN International 国际的INTPH Interphone 话机INTPR Interpreter 翻译INTR Interruption 中断INTR Interrupt 中断INTR International 国际的INTRG Interrogator 询问器INTRO Introduction 介绍，引进INTRLN/R Interline Rate 联运运费INTRP Interrupt 中断，干扰INTRP Interruption 中断，干扰INTRST Interest 利息，兴趣INTRSTD Interested 有关的，感兴趣的INTSF Intensify 加强，加剧，强化INTST Intensify 强度INTST Interest 利息，兴趣INTSTD Interested 有关的，感兴趣的INTSV Intensive 密集的INTSV Intensive 密集的INTSVC International Service 国际航班INTSYS Inter System 部系统INTVW Interview 会见，访问INU Inertial Navigation Unit 惯性导航组件INV Invalid 无效的INV Invert 倒的，相反的，逆的INV Invertor 变流机，变压器INV Invoice 发票INV Inventory 清单INV Invain 无效INV Invent 发明INVEST Investigate 调查，考察INVEST Investigation 调查，考察INVIT Invitation 邀请INVMT Investment 投资INVO Invoice 发票INVTR Inverter 变流机，变压器IO In Order 有顺序I/O Input/Output 输入/输出I/O Instead of 代替Indicated Outside Air指示的外界大气温度IOATTemperatureIOC Input/Output Controller 输入/输出控制器IOCE Input/Output Control Element 输入/输出控制元件Inboard Overhead Electronics侧预部电子组件IOEUUnitIOL Inboard Open/loop 开，环路IOU I Owe You 我借你……P Intermediate Pressure 中间压力IPC Illustrated Part Catalog 图解零件目录IPO Integrated Purchase Order 综合购买定货IPS Intermittent Positive Control 间歇性绝对管制IPS Inches Per Second 英寸/秒IPU Instruction Processor Unit 指令处理组件IPV Improve 改进，变好IQ Iraq 伊拉克IR Instrument Restricted Controlled 仪表限制控制空域IR Ice On Runway 跑道上有冰IR Indian Rupee 印度卢比（货币单位）I/R Instrument Restricted 限于仪表飞行I/R Interchangeability/Replaceability 互换性/替换性IRC International Route Charge 国际航线收费IRC Inbound Radar Control 进场雷达管制IRE Irregular 不规则的，不定期的IRE Ireland 爱尔兰Inertial Referenced Flight惯性基准飞行检查系统IRFISInspection SystemIRGAV Change In Aircraft Type 改换机型Change In Equipment Or Lay改变设备或客舱布局IRGEQOutIRGHO Change In Schedule Time 改变班期时刻IRI Iran Rial 伊朗里亚尔（货币单位）IRL Ireland 爱尔兰IRMP Inertial Reference Mode Panel 惯性基准组件面板IRN Iran 伊朗IRP Irregularity Report 非正常情况报告IRPT Interrupt 中断，打扰IRR Iranian Rial 伊拉克里亚尔（货币单位）IRR Irrevocable 不可改变的IRR Instrument Rating Renewal 仪表额定更新IRREG Irregular 不正常，不规则，不定期IRS Inertial Reference System 惯性基准系统IRS/NAV IRS/Navigation 惯性基准系统/导航IRU Inertial Reference Unit 惯性基准组件Inertial Reference Unit惯性基准电子元件IRUEElectronicsIS Island 岛屿IS Iceland 冰岛International Standardization国际标准协会ISAAssociationInternational Standard国际标准大气温度ISAAtmosphereISA If Space Available 如有空吨（座）位ISB Independent Sideband 独立边带ISB Inter System Bus 部系统汇流条ISD Issued 发行的，填开的，发布的ISDU Inertial System Display Unit 惯性系统显示组件ISL Island 岛屿ISL Iceland 冰岛ISLN Isolation 隔离ISM Inertial System Mount 惯性系统架Interim Standard Microwave临时标准微波着陆系统ISMLSLanding SystemISO Isolation 隔离International Standard国际标准组织ISOOrganizationISOL Isolated 独立的，隔离的ISOL Inolation 隔离ISP In-Service Problem 工作中的问题ISS Inertial Sensor System 惯性传感系统ISS Issue 发行，发布ISSS Instrument Source Select Switch 仪表电源选择电门ISU Issue 发行，填开，发布ISWL Isolated Single Wheel load 单轮当量载荷IT Items 项目IT Italian 意大利人，意大利语，意大利的IT In Transit 在运输中ITIN Itinerary 航程ITL Italian Lira 意大利里拉（货币单位）ITM Items 项目ITNL Internal 部的ITNRY Itinerary 航程ITS Integrated Test Specification 综合测试规格International国际电信联盟ITUTelecommunication UnionIU Index Unit 指数单位I/V Instrument/Visual 仪表/目视IVLD Invalid 无效的Instantaneous Vertrical Speed瞬时垂直速度表IVSIIndicatorI/W Inter-changeable 与……互换IWS With Itemized Work Statement 逐条施工说明IXR Runway Intersection 跑道联络道IAS Indicated Airspeed 指示空速ILS Instrument Landing System 仪表着陆系统IRS Instrument Reference System 惯性基准系统。