| 序号 | 英文 | 音标 | 词性 | 中文 |
| | SCOPE | | | =Scientific Committee on Problems of the Environment 环境问题科学委员会(ICSU) |
| | SCOPT | | | =Sub-Committee On Programming Terminology 程序设计术语小组委员会 |
| | SCOR | | | ICSU) |
| | SCORE | | | =Satellite Computer-Operated Readiness Equipment 卫星上计算机操纵的准备装置 |
| | SCOT | | | =Semi-automated Computer Oriented Text 半自动面向计算机文本 |
| | SCP | | abbr. | single-cell protein 单细胞蛋白质 |
| | SCPO | | abbr. | Senior Chief Petty Officer (美国海军)一级军士长 |
| | SCR | | abbr. | [军] Scout Car Reconnaissance, 侦察车侦察 |
| | SCRA | | | =Single Channel Radio Access 单信道无线存取 |
| | SCS | | abbr. | Soil Conservation Service (美国)(农业部)水土保持局 |
| | SCSH | | | =Structural Carbon Steel Hard 结构用硬碳素钢 |
| | SCSI | | n.；abbr. | n. 小型计算机系统接口；abbr. 小型计算机系统接口 |
| | SCSM | | | =Structural Carbon Steel Medium 结构用中碳素钢 |
| | SCSS | | | =Structural Carbon Steel Soft 结构用软碳素钢 |
| | SCT | | | =Subroutine Call Table 子程序调用表 |
| | SCTL | | | =Short-Circuited Transmission Line 短路传输线 |
| | SCU | | | =Secondary Control Unit 辅助控制装置 |
| | SCUA | | abbr. | Suez Canal Users' Association苏伊士运河使用国协会 |
| | SCV | | abbr. | Sons of Confederate Veterans (美国)南部联盟士兵遗孤组织 |
| | SD | | | =Scientific Detective Monthly 《科学探测月刊》 |
| | SD alloy | | | 超硬铝合金 |
| | SDA | | | =Soap and Detergent Association 肥皂和洗涤剂协会[美] |
| | SDB | | | =Store Data Buffer 存储数据缓冲器 |
| | SDBS | | | =sodium dodecyl benzene sulfonate 十二烷基苯磺酸钠 |
| | SDC | | | =Scientific Data Center科学资料中心[美] |
| | SDCE | | | =Society of Die Casting Engineers 压铸工程师协会[美] |
| | SDD | | | =Sodium Dimethyl Dithiocarbamate 二甲基二硫代氨基甲酸钠 |
| | SDECE | | abbr. | <法>Service de documentation étrang ère et de contre-espionnage (法国)外国情报与反谍报署(= the official counterintelligenceagency in France) |
| | SDF | | abbr. | [军] Self-Defense Forces, 自卫队 |
| | SDFC | | | =Space Disturbance Forecast Center 空间扰动预报中心([美]ESSA) |
| | SDFG | | | =Single Degree of Freedom Gyroscope 单自由度陀螺仪 |
| | SDH | | n. | 同步数字系列 |
| | SDI | | | [计]定题情报提供 |
| | SDK | | abbr. | Software Development Kit, 软件开发工具包 |
| | SDL | | | =Shut-down Loading 停炉装料 |
| | SDLC | | | 同步数据链路控制 |
| | SDLP | | abbr. | （英国北爱尔兰）社会民主工党 |
| | SDO | | | =synthetic drying oil 合成干性油 |
| | SDP | | abbr. | 社会民主党(Social Democratic Party) |
| | SDR | | abbr. | （国际货币基金组织的） |
| | SDRs | 9es9di:`B:z | | [复] n.特别提款权(国际货币基金组织的成员国政府之间用于结算国际收支的一种新的国际清偿手段储备) |
| | SDS | | | =Scientific Data System 科学数据系统 |
| | SDT | | | =Single Diode-Triode 单二极-三极管 |
| | SDU | | | =Signal Distribution Unit信号分配装置 |
| | SE | | abbr. | 东南 (southeast) |
| | SEA | | | =special effect amplifier 特殊效果放大器 |
| | SEAC | | | =Standard Eastern Automatic Computer 东部标准自动计算机([美]NBS) |
| | SEACOM | | | =South-East Asia Commonwealth cable 东南亚国家(海底)电缆 |
| | SEADAC | | | =Seakeeping Data Analysis Center 适航性数据分析中心 |
| | SEAL | | | =Sea, Air, and Land海, 空, 陆 |
| | SEAMETS | | | =Sea Meteorological Service 海洋气象服务站[美] |
| | SEAMFDC | | | =Southeast Asia Marine Fisheries Development Cen-ter 东南亚海洋渔业开发中心 |
| | SEARCC | | | =South East Asia Regional Computer Conference东南亚地区计算机会议 |
| | SEATO | `si:tEu | | =Southeast Asia Treaty Organization 东南亚条约组织 |
| | SEC | sek | abbr.；n.；n. | abbr. Scurities and Exchange Commission, 证券交易委员会；n. secretary,秘书,书记,大臣；n. 秒 |
| | SEC target | | | 二次电子导电靶 |
| | SECAM | `si:9kAm | abbr. | SECAM制式(顺序与存储彩色电视系统) |
| | SECO | | | =Self-regulating Error-Correcting Coder-decoder 自调(整的)误差修正编码-译码器 |
| | SECOM | | | =System Engineering Communication 系统工程通信 |
| | SECOR | | | =Sequential Collation of Range 距离连续校正 |
| | SED | | | =Space Engineering Document 航天工程文献 |
| | SEG | | | =Society of Economic Geologists 经济地质学家学会[美] |
| | SEGA | | | SEGA有限公司 |
| | SEIC | | | =Solar Energy Information Center 太阳能情报中心 |
| | SELAD | | | =Selective Adressing 选择寻址 |
| | SELCAL | | | =Selective Calling (System) 选择呼叫(装置, 系统) |
| | SEM | | abbr. | [军] Standard Electronic Modules, 标准电子组件 |
| | SEN | | abbr. | 政府录用的护士 (State Enrolled Nurse) |
| | SEP | | | =Self Elevating Platform 自升防平台 |
| | SEPPC | | | =Single Ended Push-Pull Circuit 单端推挽电路 |
| | SEPST | | | =Solar Electric Propulsion System Technology 太阳电力推进系统技术 |
| | SER | | | =Soft Error Rate 软件错误率 |
| | SERA | | | =Socialist Environment and Resources Association 社会主义环境及资源协会 |
| | SERF | | | =Studies of the Economics of Route Facilities 道路设施经济性研究(联合国ICAO的一个组) |
| | SERI | | | =Solar Energy Research Institute 太阳能研究所[美] |
| | SERT | | | =Society of Electronic and Radio Technicians 电子与无线电技师学会[英] |
| | SES | | abbr. | socioeconomic status 社会经济地位 |
| | SESA | | | =Social and Economics Statistics Administration社会及经济统计管理局[美] |
| | SESCO | | | =Secure Submarine Communications 潜艇保密通信 |
| | SET | | | =Self-Extending Translator 自扩充翻译程序 |
| | SETAF | | | =Southern European Task Force 南欧特遣部队 |
| | SETI | | abbr. | search for extraterrestrial intelligence 对外星智能的探索 |
| | SEVA | | abbr. | stand-up extravehicular activity(宇航员在外层空间的)直立舱外活动 |
| | SF | | abbr.；abbr. | abbr. San Francisco旧金山；abbr. science fiction科幻小说 |
| | SFA | | abbr. | Scottish Football Association(英国)苏格兰足球协会 |
| | SFAR | | | =Sound Fixing and Ranging 超声波水声定位 |
| | SFB | | | =Semiconductor Functional Block 半导体功能块 |
| | SFC | | abbr. | [军] Specific Fuel Consumption, 燃油消耗率 |
| | SFD | | | =Single Frequency Dialling 单频拨号 |
| | SFF | | abbr. | [军] Self Forging Fragments, 自毁破片 |
| | SFGD | | | =Shell's Fuel Gas Desulfurization Process 壳牌石油公司燃料气脱硫法 |
| | SFL | | | =Substrate Feed Logic基片馈电逻辑 |
| | SFM | | | =Space Frequency Modulation 空间频率调制 |
| | SFR | | | =Selective File Retrieval 选择文件检索 |
| | SFSA | | | =Steel Founder's Society of America 美国铸钢工作者协会 |
| | SFT | | | 系统容错 |
| | SFTA | | | =Society of Film and Television Arts 电影与电视艺术学会[英] |
| | SFTS | | | =Standard Frequency and Time Signals 标准频率和时间信号 |
| | SFX | | abbr. | special effects cinematography, 特技效果 |
| | SG | | | =Scanning Gate 扫描控制门 |
| | SGDI | | | =Swaging Die 型锻模 |