| 序号 | 英文 | 音标 | 词性 | 中文 |
| | BILE | | | =Balanced Inductor Logical Element 平衡式感应器逻辑元件 |
| | BIM | bIm | abbr.；n. | abbr. British Institute of Management 英国管理学会 ；n. <口>(拉丁美洲)巴巴多斯人 |
| | BIMCAM | | | =British Industrial Measuring and Control Apparatus Manufacturers' Association 英国工业测量及控制食品厂商协会 |
| | BIOS | `baICs | abbr. | [计] Basic Input Output System 基本输入输出系统 |
| | BIR | | abbr. | Board of Inland Revenue (英国)国内税收局 |
| | BIS | | | =Bank for International Settlements 国际清算银行 |
| | BITNET | | abbr. | [计] Because It's Time Network, 一种联接世界教育单位的计算机网络 |
| | BIX | | | =Binary Information Exchange 二进制信息交换 |
| | BK | | | [化]元素锫 (=berkelium) 的符号 |
| | BKdusty pink | | | 土灰粉红色 |
| | BL | | abbr. | [军] Bridge-Layer, 架桥装置 |
| | BLA | | abbr. | Bachelor of Liberal Arts 文(科)学士 |
| | BLC | | abbr. | boundary layer control [空]附面层控制 |
| | BLC air | | | 附面层控制系统空气 |
| | BLE | | abbr. | Brotherhood of Locomotive Engineers (美国)火车司机兄弟会 |
| | BLIS | | | =Bell Laboratories Interpretive System 贝尔实验室解释系统[美] |
| | BLM | | abbr. | Bureau of Land Management(美国内政部)土地管理局 |
| | BLODI | | | =Block Diagram Compiler 框图编译程序 |
| | BLP | | | =Bar Line Printer 杆式宽行打印机 |
| | BLS | | | =Bureau of Labour Statistics 劳工统计局([美]USDI) |
| | BLT | | | bacon,lettuce and tomato , 火腿、莴苣、番茄三明治 |
| | BLitt | | abbr. | 文学士 (Bachelor of Letters) |
| | BM | | abbr. | 医学士 (Bachelor of Medicine) |
| | BMA | | abbr. | British Medical Association, 英国医师协会 |
| | BMAC | | | =Bistable Magnetic Element[无]双稳态磁性元件 |
| | BMC | | abbr. | British Medical Council 英国医学委员会 |
| | BMD | | abbr. | ballistic missile defence 弹道导弹防御 |
| | BMDATC | | | =Ballistic Missile Defence Advanced Technology Center 弹道导弹防御高级技术中心([美]AUS) |
| | BMDC | | | =Ballistic Missile Defence Committee 防弹道导弹委员会 |
| | BMDS | | abbr. | ballistic missile defence system 弹道导弹防御系统, 防弹道导弹系统 |
| | BMEP | | | =Brake Mean Effective Pressure 平均有效制动压力 |
| | BMEWS | | | =Ballistic Missile Early Warning System 弹道导弹预警系统 |
| | BMJ | | abbr. | British Medical Journal 《英国医学杂志》 |
| | BMO | | | =Ballistic Missile Office 弹道导弹局([美]USAF) |
| | BMOC | | abbr. | big man on (the) campus<美><学俚>校内大人物 |
| | BMP | | | [计] 位图文件的扩展名 |
| | BMR | | | =Basal Metabolic Rate 基础代谢率 |
| | BMS | | abbr. | Bachelor of Marine Science 海洋科学学士 |
| | BMSD | | | =Boom Defense and Marine Salvage Department 布栅防御和海难救援处[英] |
| | BMTA | | abbr. | British Motor Trade Association 英国汽车同业公会 |
| | BMTFA | | | =British Malleable Tube Fittings Association 英国韧性管配件协会 |
| | BMV | | abbr. | Blessed Mary the Virgin [宗]圣母马利亚 |
| | BMW | | abbr. | Bavarian Motor Works, 德国宝马汽车公司 |
| | BMWS | | | =Ballistic Missiles Weapon System 弹道导弹武器系统 |
| | BMX | bi:em5eks | abbr. | bicycle motocross, 自行车越野赛 |
| | BMus | | abbr. | 音乐学士 (Bachelor of Music) |
| | BN | | | =Balancing Network平衡网络 |
| | BNC | | | [计] 同轴电缆接插件 |
| | BNC connector Jack | | n. | BNC 插座 |
| | BNC connector plugs | | n. | BNC 插头 |
| | BND | | abbr. | <德>Bundesnachrichtendienst (德意志联邦共和国) 联邦情报局 ( =Federal Intelligence Service) |
| | BNDD | | abbr. | Bureau of Narcotics and Dangerous Drugs(美国司法部)麻醉品和危险药品管理局 |
| | BNES | | | =British Nuclear Energy Society 英国核能学会 |
| | BNF | | | =Backus-Naur Form 巴科斯-诺尔范式 |
| | BNFL | | abbr. | British Nuclear Fuels,Limited 英国核燃烧(股份有限)公司 |
| | BNL | | | =British Nuclear Laboratories英国核实验室([英]CEGB) |
| | BNOC | | abbr. | British National Oil Corporation 英国国家石油公司 |
| | BNR | | | =Bell North Research Network 贝尔北方研究网[美] |
| | BNS | | | =Binary Number System 二进位数字系统 |
| | BO | | | =Base Oil 原油, 基础油 |
| | BOA | | | =British Olympic Association 英国奥林匹克协会 |
| | BOAC | | | =British Overseas Airways Corporation 英国海外航空公司 |
| | BOC | | | 中国银行 |
| | BOD | | | =Biochemical Oxygen Demand 生化需氧量 |
| | BOF | | abbr. | basic oxygen furnace[冶]碱性氧气转炉 |
| | BONUS | | | =Boling Nuclear Superheat Reactor 沸腾式过热核反应堆 |
| | BOR | | | =Board of Review 复审委员会[美] |
| | BORAX | | | =Boiling Reactor Experiment 沸腾式实验性反应堆 |
| | BORE | | | =Beryllium Oxide Reactor Experiment 氧化铍实验性反应堆 |
| | BOS | | | =Back-Off System 补偿系统 |
| | BOSS | | | =Bioastronautical Orbiting Space Station 宇宙生物轨道空间站 |
| | BOT | | | =Beginning of Tape 磁带起始 |
| | BOTAC | | | =Board of Trade Advisory Committee 商务部咨询委员会[英] |
| | BOTB | | abbr. | British Overseas Trade Board 英国海外贸易局 |
| | BOTU | | | =Board of Trade Unit [英]商务部电能单位(二千瓦)小时 |
| | BP | | abbr. | 呼机, 俗称BB机 |
| | BPA | | | 国际权威发行量认证机构 |
| | BPAS | | abbr. | British Pregnancy Advisory Service 英国孕期咨询服务处 |
| | BPC | | abbr. | British Pharmaceutical Codex英国药物处方书 |
| | BPCF | | | =Band-Pass Crystal Filter 带通晶体滤波器 |
| | BPD | | abbr. | barrels per day 桶[日](用于表示石油产量等) |
| | BPE | | | = Boiling Point Elevation 沸点升高 |
| | BPF | | | =Band-Pass Filter[无]带通滤波器 |
| | BPG | | | =Blood Pressure Gauge 血压计 |
| | BPI | | | =Base Petrol Installation 基地加油装置 |
| | BPL | | | =Basic Parts List 基本零件清单 |
| | BPO | | | =Benzoyl Peroxide 过氧化苯甲酰 |
| | BPS | | | = Basic Programming Support 基本程序设计支持 |
| | BR | | abbr. | 英国铁路公司 (British Rail) |
| | BRCS | | abbr. | British Red Cross Society英国红十字会 |
| | BRD | | abbr. | <德> Bundesrepublik Deutschland 德意志联邦共和国( = FederalRepublic of Germany) |
| | BRDB | | | =British Rubber Development Board 英国橡胶发展委员会 |
| | BRDC | | | =British Racing Drivers' Club 英国赛车驾驶员俱乐部 |
| | BRE | | abbr. | Bachelor of Religious Education宗教教育学士 |
| | BREL | | | =British Rail Engineering Limited 英国铁路工程公司 |
| | BREMA | | | =British Radio Equipment Manufacturers Association 英国无线电设备厂商协会 |
| | BRI | | abbr. | Basic Rate Interference,基本速率干扰 |
| | BRICS | | | =Bureau of Research Information Control System 科研情报管理系统局([美]USOE) |
| | BRIMEC | | | =British Mechanical Engineering Confederation 英国机械工程联合会 |
| | BRL | | abbr. | [军] Ballistic Research Laboratory, 弹道研究实验室 |
| | BRLESC | | | =Ballistic Research Laboratories Electronic Scientific Computer弹道研究实验室电子科技计算机([美]AUS) |