| 序号 | 英文 | 音标 | 词性 | 中文 |
| | SGDI | | | =Swaging Die 型锻模 |
| | SGE | | | =Severable Government Equipment 可分离的控制装置 |
| | SGG | | | =Sustainer Gas Generator 主发动机气体发生器 |
| | SGI | | n. | 美国图形工作站生产厂商 |
| | SGM | | | =Ship-to-Ground (guided) Missile 舰对地导弹 |
| | SGML | | abbr. | Standard for General Markup Language,通用标记语言标准 |
| | SGN | | | =Standing Group North Atlantic Treaty Organization 北大西洋公约组织常设小组 |
| | SGR | | | =Sodium Graphite Reactor 钠石墨反应堆 |
| | SGS | | | 欧洲著名的SGS-汤姆逊电子集团 |
| | SH | | | =School House校舍 |
| | SHA | FR: | abbr.；int. | abbr. sidereal hour angle[天]恒星时角 ；int. =shah |
| | SHAEF | FeIf | abbr. | Supreme Headquarters,Allied Expeditionary Forces(第二次世界大战时的)盟国远征军最高统帅部 |
| | SHAPE | | | =Supersonic High Altitude Parachute Experiment 超音速高空降落伞试验 |
| | SHE | | | =Signal Handling Equipment信号操纵设备 |
| | SHEED | | | =Scanning High Energy Electron Diffraction 扫描高能电子衍射 |
| | SHF | | | =Shunt Field 分激磁场 |
| | SHIMMS | | | =Shipboard Integrated Man-Machine System 船载综合人-机系统 |
| | SHIP | | | =Ship Division of the National Physical Laboratory 国家物理实验室船舶部[英] |
| | SHM | | | =Shared Memory 共享的存贮器 |
| | SHOT | | | =Society for the History of Technology 技术史学会[美] |
| | SHP | | abbr.；abbr. | abbr. [军] Shaft Horse Power, 轴马力；abbr. [军] Self Propelled Howitzer, 自行榴弹炮 |
| | SHTHG | | | =sheathing 外壳, 包套 |
| | SHTR | | | =shutter 光棚, 节气门, 断路器 |
| | SHTTP | | | 加密的HTTP协议 |
| | SIA | | abbr. | Singapore Airlines 新加坡航空公司 |
| | SIB | | | =scheduling information bulletin 定期情报汇编 |
| | SIBS | | | =stellor inertial bombing system 天文惯性轰炸系统 |
| | SIC | | | =Security Intelligence Corp 安全情报部队 Semiconductor Integrated Circuit 半导体集成电路 |
| | SID | sId | abbr. | sudden ionospheric disturbance (通常由太阳引起的)电离层突然骚动 |
| | SIDS | | abbr. | 婴儿猝死综合症(sudden infant death syndrome) |
| | SIF | | | =sound intermediate frequency 中音频 |
| | SIG | | abbr. | Special Interest Group,有共同特殊观点或要求的群体 |
| | SIGACT | | | =Special Interest Group on Automata and Computabi-lity Theory (美国计算机协会) 自动机与可计算性理论专业组 |
| | SIGARCH | | | =Special Interest Group on Architecture of Computer Systems (美国计算机协会)计算机系统结构专业组 |
| | SIGART | | | =Special Interest Group on Artificial Intelligence (美国计算机协会)人工智能专业组 |
| | SIGBDP | | | =Special Interest Group on Business Data Processing (美国计算机协会)商业数据处理专业组 |
| | SIGBIO | | | = Special Interest Group on Biomedical Computing (美国计算机协会)生物医学计算专业组 |
| | SIGCAS | | | =Special Interest Group on Computers And Society (美国计算机协会)计算机与社会专业组 |
| | SIGCOMM | | | =Special Interest Group on Data Communication (美国计算机协会)数据通信专业组 |
| | SIGCPR | | | =Special Interest Group on Computer Personnel Research (美国计算机协会)计算机人事研究专业组 |
| | SIGCSE | | | =SpeciallnterestGroupon ComputerScienceEduca-tion (美国计算机协会)计算科学教育专业组 |
| | SIGDA | | | =Special Interest Group on Design Automation (美国计算机协会)设计自动化专业组 |
| | SIGFIDET | | | =SpecialInterestGroupon FileDescription andTranslation (美国计算机协会)文件说明与翻译专业组 |
| | SIGGRAPH | | | =Special Interest Group on Computer Graphics (美国计算机协会)计算机绘图专业组 |
| | SIGIR | | | =Special Interest Group on Information Retrieval (美国计算机协会)情报检索专业组 |
| | SIGLASH | | | =Special Interest Group on Language Analysis and Studies in the Humanities (美国计算机协会)语言分析与人文学研究专业组 |
| | SIGMA | | | =Sealed Insulating Glass Manufacturers Association密封绝缘玻璃厂商协会[美] |
| | SIGMAP | | | =SpecialInterestGrouponMathematicalProgram-ming (美国计算机协会)数学规划专业组 |
| | SIGMICRO | | | =Special Interest Group on Microprogramming (美国计算机协会)微程序设计专业组 |
| | SIGNUM | | | =Special Interest Group on Numerical Mathematics (美国计算机协会) 计算数学专业组 |
| | SIGSAM | | | =SpecialInterestGrouponSymbolicandAlgebraicManipulation (美国计算机协会)符号与代数运算专业组 |
| | SIGSIM | | | =Special Interest Group on Simulation (美国计算机协会)模拟专业组 |
| | SIGSOFT | | | =Special Interest Group on Software Engineering (美国计算机协会)软件工程专业组 |
| | SIGUCC | | | =Special Interest Group on University Computing Centers (美国计算机协会)大学计算中心专业组 |
| | SIGuardian | | | SIGuardian是一个磁盘工具，检查硬盘状态保护数据。它使用S.M.A.R.T.技术，支持所有ATA标准的硬盘。 |
| | SIL | | | =Speech Interference Level 会话干扰度 |
| | SIM | | | = School of Industrial Management 工业管理学院[美] |
| | SIMA | | | =Scientific Instrument Manufacturers' Association 科学仪器厂商协会 |
| | SIMAJ | | | =ScientificInstrument ManufacturesAssociation ofJapan日本科学仪器厂商协会 |
| | SIMPAC | | | =Simulation Package 模拟程序包 |
| | SIMPLAC | | | =simple automatic computer 简易自动电子计算机 |
| | SIMS | | | =secondary ion mass spectroscopy 次级离子质谱(法) |
| | SIMULA | | | =Simulation Language 模拟语言 |
| | SINAD | | | =Signal to Noise and Distortion Ratio[无]信号-噪声及失真比 |
| | SINS | | abbr. | ship's inertial navigation system 船舶惯性导航系统 |
| | SIP | | | =solvent-in-pulp溶剂矿浆萃取 |
| | SIPRI | | | =Stockholm International Peace Research Institute 斯德歌尔摩国际和平研究所 |
| | SIPT | | | =Simulating Part 模拟部件 |
| | SIR | | | =Static Information Record 统计资料记录 |
| | SIT | | | =Society of Industrial Technology 工业技术协会[英] |
| | SITC | | | =Standard International Trade Classification 国际贸易标准分类 |
| | SIU | | abbr. | Seafarers' International Union 国际海员工会 |
| | SIW | | abbr. | self-inflicted wound(s) [军]自伤 |
| | SJ | | abbr. | 耶稣会(Society of Jesus) |
| | SJAA | | abbr. | St.John Ambulance Association(英国)圣约翰救护协会 |
| | SJAB | | abbr. | St.John Ambulance Brigade(英国)圣约翰救护队 |
| | SJAC | | | =Society of Japanese Aircraft Constructers 日本飞机厂商协会 |
| | SJC | | abbr. | Supreme Judicial Court(美国某些州的)最高法院 |
| | SJCC | | | =Spring Joint Computer Conference 春季联合计算机会议[美] |
| | SJD | | abbr. | <拉>Scientiae Juridicae Doctor法学博士( = Doctor of JuridicalScience) |
| | SK | | | =Sales Kit 样品箱 |
| | SKB | | | =sodium-butadiene rubber 丁钠橡胶 |
| | SKR | | | =South Korean Republic 南朝鲜 |
| | SL | | | =Lens Spectrometer 透镜分光计 |
| | SLA | | | =Spacecraft Lunar-module Adapter 航天器-登月舱适配器 |
| | SLADE | sleId | abbr. | Society of Lithographic Artists,Designers, Engravers,and Process Workers(英国)平版及套色印刷工人工会 |
| | SLAM | | | =Strategic Low Altitude Missile 低空战略导弹 |
| | SLAN | slAn | adj.；n. | adj. n.abbr.<拉>sine loco, anno, (vel) nomine出版地点、年代或出版者名称不详(=without place, year, or name) ；n. (科幻小说中的)超人,智力和体格超群的人 |
| | SLANT | | | =Simulator Landing Attachment for Night Training 夜间训练用模拟着陆装置 |
| | SLAR | | | =Sidelooking Airborne Radar 机载侧视雷达 |
| | SLBM | | | =Satellite-Launched Ballistic Missile 人造卫星发射的弹道导弹 |
| | SLCC | | | =Soft Launch Control Center[宇]软发射控制中心 |
| | SLCM | | abbr. | submarine-launched cruise missile 潜(艇发)射(的)巡航导弹 |
| | SLEP | | abbr. | [军] Service Life Extension Program, 延长使用期计划 |
| | SLF | | | =Sender Link Frame 发射机线弧, 记发器触排 |
| | SLG | | | 策略游戏 |
| | SLI | | | =Suppress Length Indicator 控制长度指示器 |
| | SLIC | | abbr. | (Federal) Savings and Loan Insurance Corporation(联邦)储蓄借贷保险公司 |
| | SLIM | | | =Special Language Interpreting Matrix专用语言翻译矩阵 |
| | SLIP | | | (Serial Line Internet Protocol)串行线路接口协议, 是旧式的协议 |
| | SLM | | | =Ship-Launched Missile 舰上发射的导弹 |