| 序号 | 英文 | 音标 | 词性 | 中文 |
| | FAS | | | =Federation of American Scientists 美国科学家联合会 |
| | FAST | | | =Facility for Automatic Sorting and Testing 自动分类与测试设备 |
| | FASTEN SEAT BALT | | n. | 系紧安全带 |
| | FAT | | abbr. | 〈计〉文件分配表(file allocation table) |
| | FAX | | | 固定航空导航电台(电信符号) |
| | FAX/MODEM | | n. | 传真/调制解调器 |
| | FB | | | = Feed Back 反馈 |
| | FB-111 | | | 变后掠翼中程超音速双座战略轰炸机，可进行核轰炸。 |
| | FBA | | abbr. | （英国）不列颠学会会员 (Fellow of the British Academy) |
| | FBC | | | =Fluidized-Bed Combustion 流化床燃烧 |
| | FBFM | | | =Federation of British Film Markers 英国电影制片商联合会 |
| | FBH | | | =Fire Brigade Hydrant 消防水栓 |
| | FBI | | n. | 美国联邦调查局 |
| | FBIS | | | =Foreign Broadcasting Information Service 对外广播新闻处[美] |
| | FBM | | | =Fleet Ballistic Missile 舰载弹道导弹 |
| | FBMS | | | =Fleet Ballistic Missile Submarine 舰载弹道导弹潜艇 |
| | FBOA | | abbr. | Fellow of the British Optical Association英国光学协会会员 |
| | FBP | | | =Final Boiling Point 干点(石油产品完全蒸发时的温度) |
| | FBR | | | = Fast Breeder Reactor 快中子增殖反应堆 |
| | FBRAM | | | = Federation of British Rubber and Allied Manufacturers 英国橡胶与相关工业厂商联合会 |
| | FBS | | abbr. | forward-based system[军]前沿配置的系统,前沿(武器)系统 |
| | FBS data set | | | [自]FBS 数据集合 |
| | FC | | | [计] 文件比较 |
| | FCA | | | =Farm Credit Administration 农业信贷局[美] |
| | FCB | | | =Forms Control Buffer 格式控制缓冲区 |
| | FCBS | | | [计] 指定可使用文件控制块的数目 |
| | FCC | | abbr. | Federal Communications Commission, (美国)通信委员会 |
| | FCCV | | abbr. | [军] Future Close Combat Vehicle, 未来近战车辆 |
| | FCDR | | | =Failure Cause Data Report 故障原因数据报告 |
| | FCE | | abbr. | [军] Fire Control Equipment, 火控设备 |
| | FCFS | | abbr. | First Come,First Served, 先来先服务 |
| | FCGA | | | =Facility Gauge 设备标准 |
| | FCGR | | | =Fatigue Crack Growth Rate 疲劳断裂生长率 |
| | FCI | | | =Federated Chamber of Industries工业联合会[南非] |
| | FCIA | | abbr. | Foreign Credit Insurance Association(美国)外国信用保险协会 |
| | FCIC | | abbr. | Federal Crop Insurance Corporation(美国农业部)联邦农作物保险公司 |
| | FCIS | | abbr. | Fellow of the Chartered Institute of Secretaries(英国)特许文书协会会员 |
| | FCL | | | =Flight Control Laboratory 飞行控制实验室 |
| | FCM | | | = Farrel Continuous Mixer 法雷尔式连续搅拌机 |
| | FCN | | | =Greenwich Civil Noon 格林威治民用时中午 |
| | FCO | | abbr. | Foreign and Commonwealth Office, 外交联邦部 |
| | FCP | | | =Fatique Crack Propagation 疲劳断裂蔓延 |
| | FCS | | abbr. | [军] Fire Control System, 火控系统 |
| | FCST | | | =Federal Council for Science and Technology 联邦科学技术委员会[美] |
| | FCT | | | =Fatigue Crack Test 疲劳断裂试验 |
| | FCU | | | = Federal Credit Union 联邦信贷联盟[美] |
| | FD | | | [计] 软驱 |
| | FDA | | abbr. | Food and Drug Administration(美国)食品及药物管理局 |
| | FDB | | | =Field Dynamic Braking 外场动力控制 |
| | FDC | | | =Facility Design Criteria 设备设计标准 |
| | FDD | | | =Floating Drydock 浮动干船坞 |
| | FDDI (Fiber Distributed Data Interface) | | | (Fiber Distributed Data Interface)光纤分布式数据接口 |
| | FDDI | | | [计] 光纤分布式数据接口 |
| | FDDL | | | 数据传输装置 |
| | FDF | | | =Forced-Draft-Fan 强制通风机, 压力送风机 |
| | FDI | | | =Federation Dentaire Internationale (=International Dental Federation)国际牙科联合会[法] |
| | FDK | | | =Fore Deck 前甲板 |
| | FDL | | | =Formation Density Log 地层密度测井 |
| | FDM | | abbr. | [无] Frequency-division multiplexing, 频分多路复用 |
| | FDR | | abbr. | Franklin Delano Roosevelt富兰克林·德兰诺·罗斯福( 美国第三十二任总统) |
| | FDV | | | =Floating Divide 浮点除(法) |
| | FDW | | | =Feed Water 给水 |
| | FDX | | | =Full Duplex 全双工 |
| | FE | | abbr. | 成人教育(further education) |
| | FEA | | abbr. | Federal Energy Administration(美国)联邦能源署 |
| | FEB | | | =Functional Electronic Block 功能电子块 |
| | FEBA | | abbr. | [军] Forward Edge of the Battle Area, 战斗地区前沿 |
| | FEC | | | =Far East Conference 远东会议 |
| | FECB | | | =Foreign Exchange Control Board 外汇管理委员会[英] |
| | FED | | | =Federal (for specifications or standards)联邦的(用于规格或标准)[美] |
| | FEDOM | | abbr. | <法>Fonds Europ éen de D éveloppement pour les Pays et Territoires d'Outre-Mer欧洲海外开发基金会(=European Development Fund for Overseas Countries and Territori |
| | FEF | | | =Fast Extruding Furnace (=carbon black)(炭黑)快速挤压炉 |
| | FEFC | | | =Far Eastern Freight Conference 远东货运会议 |
| | FEFET | | | = Ferro-Electric Field Effect Transistor 铁电场效应晶体管 |
| | FEM | | | =Field Emission Microscopy 场致发射显微镜 |
| | FEMA | | | = Federal Emergency Management Agency 联邦应急管理局[美] |
| | FEP | | | =Fluorinated Ethylene Propylene (rubber)氟化乙丙烯(橡胶) |
| | FER | | | =Floating Error 浮点出错 |
| | FERA | | | =Federal Emergency Relief Administration [美旧]联邦紧急救济署 |
| | FES | | | = Federal Extension Service 联邦农业技术推广局([美]农业部) |
| | FET | | | =Far East Time 远东时间 |
| | FEV | | | =Forced Expiratory Volume 最大呼气量 |
| | FF | | | =Fire Fighting 灭火, 消防 |
| | FF express extra | | | 特快加价票 |
| | FFA | | | [商]国外货运代理人 |
| | FFAG | | | =Fixed-Field Alternating-Gradient (accelerator)固定磁场交变梯度(加速器), 稳定磁场强聚焦(加速器) |
| | FFHC | | abbr. | Freedom from Hunger Campaign(联合国)免于饥饿运动 |
| | FFI | | | =Free Fluid Index 自由流体指数 |
| | FFL | | | =Field Failure 外场损坏 |
| | FFO | | | =Fixed Frequency Oscillator 固定频率振荡器 |
| | FFT | | | =Fast Fourier Transform Algorithm (method)快速傅氏变换算法 |
| | FFT algorithm | | | 快速傅里叶算法 |
| | FFTF | | | = Fast Flux Test Facility快速通量测试装置([美] USAEC) |
| | FFV | | | =First Families of Virginia 最初移住美国弗吉尼亚州的住户 |
| | FFWM | | | =Free Floating Wave Meter 自由浮动式测波仪 |
| | FG | | abbr. | [军] Field Gun, 野战炮 |
| | FGA | | | =Flat Glass Association 平板玻璃协会 |
| | FGCM | | abbr. | field general court martial 战地高等军事法庭 |
| | FGCP | | | [计] 第五代计算机计划 |
| | FGCS | | | [计] 新一代的计算机系统 |
| | FGM | | | =Field Guided Missile 野战制导导弹 |