| REC | record | 录制 |
| REC | Reclamation | 索赔 |
| REC | Regional Echomail Coordinator | 区内会议信件协调人 |
| REC | Recirculation Evaporative Cooling | 再循环蒸发冷却 |
| REC | Recife, Pernambuco, Brazil - Guararapes International (Airport Code) | 巴西伯南布哥累西腓-瓜拉佩斯国际机场（机场代码） |
| REC | Regional Environmental Center | 区域环境中心 |
| REC | Reinsurance Earned Commissions (insurance) | 再保险赚取佣金（保险） |
| REC | Roll Eccentricity Compensation (mills) | 轧辊偏心补偿（轧机） |
| REC | Rectifier | 整流器 |
| REC | Recreation | 娱乐 |
| REC | Regional Energy Commission (Russia) | 区域能源委员会（俄罗斯） |
| REC | Receiving | 接收 |
| REC | Reckoning | 计算 |
| REC | Research Ethics Committee | 研究伦理委员会 |
| REC | Renewable Energy Certificate | 可再生能源证书 |
| REC | Recommender Systems in e-Commerce | 电子商务中的推荐系统 |
| REC | Renewable Energy Corporation ASA (Sandvika, Norway) | 可再生能源公司ASA（挪威山特维克） |
| REC | Revenue Estimating Conference | 收入估算会议 |
| REC | Revue Electronique de Communication | 通信电子评论 |
| REC | Renewable Energy Credit | 可再生能源信贷 |
| REC | Record of Environmental Compliance | 环境合规性记录 |
| REC | Subsafe Re-Entry Control | 亚安全再进入控制 |
| REC | Recognized Environmental Condition (environmental, geoscience, and engineering) | 公认的环境条件（环境、地球科学和工程） |
| REC | Remote Encoding Center | 远程编码中心 |
| REC | Rear End Collision | 后端碰撞 |
| REC | Rural Electrification Corporation (India) | 农村电气化公司（印度） |
| REC | RÉduction d'Emissions CertifiÉe (French) | RÉduction d'Emissions CertifiÉe (French) |
| REC | Recollections in Christianity (Sacramento, California) | 基督教回忆（加利福尼亚州萨克拉门托） |
| REC | Right-Edge Cell | 右边缘单元格 |
| REC | Request for Engineering Change | 工程变更请求 |
| REC | Respiratory Epithelial Cells | 呼吸上皮细胞 |
| REC | Receive (telecommunications) | 接收（电信） |
| REC | Receipt(s) | 收据 |
| REC | Regional Electricity Company | 区域电力公司 |
| REC | Renewable Energy Cheaper Than Coal | 可再生能源比煤炭便宜 |
| REC | Recruitment and Employment Confederation (UK) | 招聘和就业联合会（英国） |
| REC | Regional Emergency Coordinator | 区域应急协调员 |
| REC | Regional Examination Center (US Coast Guard) | 地区考试中心（美国海岸警卫队） |
| REC | Renal Epithelial Cells | 肾上皮细胞 |
| REC | Rescue Emergency Care (Ireland) | 救援紧急护理（爱尔兰） |
| REC | Windows Recorder Macro | Windows录制器宏 |
| REC | Reformed Episcopal Church | 归正圣公会 |
| REC | Recycle | 回收利用 |
| REC | Regional Evaluation Center | 区域评估中心 |
| REC | Rural Electrification Corporation Ltd (India) | 农村电气化有限公司（印度） |
| REC | Regional Environmental Coordinator | 区域环境协调员 |
| REC | Rare-Earth Cobalt | 稀土钴 |
| REC | Record of Environmental Consideration | 环境考虑记录 |
| REC | Random Environment Contest (Robot Battle tournament) | 随机环境比赛（机器人大战比赛） |
| REC | Rural Electric Cooperative | 农村电力合作社 |
| REC | Regional Economic Communities | 区域经济共同体 |
| REC | RECeive Alarm | RECeive警报 |
| REC | Republican Executive Committee | 共和党执行委员会 |
| REC | Rabbit Ear Chamber | 兔耳腔 |
| REC | Regional Engineering College | 区域工程学院 |
| REC | Radio Electronic Combat | 无线电电子战 |
| REC | Renaissance Electronics Corp (Harvard, Massachusetts) | 复兴电子公司（马萨诸塞州哈佛） |
| REC | Recurrent | 经常性 |
| REC | Recreational Education Community | 康乐教育社区 |
| REC | Residents Encounter Christ | 居民与基督相遇 |
| REC | Racial Equality Councils | 种族平等委员会 |
| REC | Guararapes International Airport, Recife, PE, Brazil | 瓜拉佩斯国际机场，累西腓，PE，巴西 |
| REC | Recommend | 推荐 |
| REC | Reality Enforcement Commission | 现实执行委员会 |
| REC | recombinant | 重组的，重组的 |
| REC | EpiInfo Datafile | EpiInfo数据文件 |
| REC | reticuloendothelial cell | 网状内皮细胞 |
| REC | Recreational Educational Computing | 娱乐教育计算 |
| REC | regional enterocolitis | 区域性小肠结肠炎 |
| REC | ARCSERVE Archivation Protocol | ARCSERVE存档协议 |
| REC | right external carotid | 右颈外动脉 |
| REC | Random Environment Contest | 随机环境竞赛 |
| REC | Record (Sprint) | 记录（冲刺） |
| REC | radioelectrocomplexing | 放射电复合 |
| REC | rem-equivalent-chemical | 雷姆当量化学品 |
| REC | Reading Enlightenment And Contemplation | 阅读启蒙与思考 |
| REC | Recruitment And Employment Confederation | 招聘和就业联合会 |