| RTD | Realtime Differential | 实时差分 |
| RTD | Real Time Debugger | 实时除错程序 |
| RTD | Real Time Decoder | 实时译码器 |
| RTD | Resistance Temperature Detector | 电阻温度传感器 |
| RTD | Rail Transportation Division (American Society of Mechanical Engineers) | 铁路运输部（美国机械工程师协会） |
| RTD | Return to Duty | 返回工作岗位 |
| RTD | Research and Technology Directorate (NASA) | 研究与技术局（NASA） |
| RTD | Residual Thermal Damage | 残余热损伤 |
| RTD | returned to duty (US DoD) | 重返岗位（美国国防部） |
| RTD | Reactor Technology Department (Savannah River Laboratory) | 反应堆技术部（萨凡纳河实验室） |
| RTD | Requirement to Discontinue | 终止的要求 |
| RTD | Research and Technology Division | 研究和技术部 |
| RTD | Research and Technology Development | 研究和技术开发 |
| RTD | Röntgen Technischer Dienst GmbH (German) | Röntgen Technischer Dienst GmbH (German) |
| RTD | Return To Dominance | 回归主导地位 |
| RTD | Radio-Technology-Dependent | 取决于无线电技术 |
| RTD | Real Time Dispatch | 实时调度 |
| RTD | Real Time Driver | 实时驱动程序 |
| RTD | Residence Time Distribution | 停留时间分布 |
| RTD | Regional Transportation District | 区域交通区 |
| RTD | Resistive Thermal Device | 电阻热装置 |
| RTD | Rule the Day | 统治这一天 |
| RTD | Research, Technological Development | 研究、技术开发 |
| RTD | Rule the Dark | 统治黑暗 |
| RTD | Receiver-Transmitter Device | 收发信机设备 |
| RTD | Right to Development | 发展权 |
| RTD | Rapid Test Designer | 快速测试设计器 |
| RTD | Radioactive Threat Detection | 放射性威胁检测 |
| RTD | Registered Time-to-Degree (National Research Council) | 学位注册时间（国家研究委员会） |
| RTD | Round Table Deutschland | 德国圆桌会议 |
| RTD | Real-Time Defrag | 实时碎片整理 |
| RTD | Russell's Theory of Descriptions | 罗素的描述 |
| RTD | Russell T Davies (TV writer) | 拉塞尔·戴维斯（电视作家） |
| RTD | Real Time Distributor | 实时分发器 |
| RTD | Return to Desktop | 返回桌面 |
| RTD | Resubmission Turn-around Document | 重新提交周转文件 |
| RTD | Retired (sports) | 退休（体育） |
| RTD | Replacement Training Division | 替代培训部 |
| RTD | Renal Tubular Dysgenesis (aka Primitive Renal Tubule Syndrome) | 肾小管发育不良（又称原始肾小管综合征） |
| RTD | Remote Terminal, Display | 远程终端，显示器 |
| RTD | Reutilization Transfer And Donation | 再利用转移和捐赠 |
| RTD | Return To Dark | 返回黑暗 |
| RTD | Remote Display Terminal | 远程显示终端 |
| RTD | Rotunda, Florida USA | 美国佛罗里达州罗顿达 |
| RTD | Reuters Trend Data | 路透社趋势数据 |
| RTD | Rapid Transient Determination | 快速瞬态测定 |
| RTD | Revenue Transmittal Document | 收入传递文件 |
| RTD | Resistance Temperature Device | 电阻温度装置 |
| RTD | Recruit Training Depot | 招募训练基地 |
| RTD | Rome Transit Department | 罗马交通部 |
| RTD | Resonant-Tunneling Diode | 谐振隧穿二极管 |
| RTD | Ready to Drink | 准备好饮用 |
| RTD | Richmond Times-Dispatch | 时事通讯 |
| RTD | Rapid Transit District | 快速交通区 |
| RTD | Real-Time Data | 实时数据 |
| RTD | Rights in Technical Date | 技术日期中的权利 |
| RTD | Rated | 估价 |
| RTD | Rice Tungro Disease | 水稻Tungro病 |
| RTD | Round-Trip Delay | 往返行程延迟 |
| RTD | Real-Time Display | 实时显示 |
| RTD | Rotation Tour Date (USMC) | 轮换巡视日期（USMC） |
| RTD | Resistance Thermal Detector | 电阻热探测器 |
| RTD | Record Type Definition | 记录类型定义 |
| RTD | Recent Trends in Dynamics | 动力学的最新趋势 |
| RTD | Reproductive Toxicology Division | 生殖毒理学部 |
| RTD | Road Transport Department | 道路运输署 |
| RTD | Ready to Die (gaming clan) | 准备好死亡（游戏部落） |
| RTD | Resistant Temperature Device | 电阻温度装置 |
| RTD | Radiation and Technology Demonstration (NASA mission) | 辐射与技术演示（NASA任务） |
| RTD | Research and Technological Development | 研究和技术开发 |
| RTD | Radiodiffusion TÉlÉvision de Djibouti | Radiodiffusion TÉlÉvision de Djibouti |
| RTD | residence-time distribution | 停留时间分布 |
| RTD | routine test dilution | 常规试验稀释 |
| RTD | Real Tape Drive | 真实磁带驱动器 |
| RTD | renal tubular dystrophy | 肾小管营养不良 |
| RTD | Rubber Tired Dozer | 橡胶轮胎推土机 |
| RTD | Reutilization/Transfer/Donation | 主持或转让/捐款 |
| RTD | Real Time Data | 实时数据 |
| RTD | Resident Training Detachment | 驻地训练支队 |
| RTD | Real Time Display | 实时显示 |
| RTD | Rio Tinto Diamonds | 力拓钻石公司 |
| RTD | Run Time Display | 运行时间显示 |
| RTD | Redundantly Taxed District | 免税区 |
| RTD | Reconfigurable Tactile Display | 可重构触觉显示器 |
| RTD | Radar Technology Demonstrator | 雷达技术演示器 |
| RTD | Reason To Drive | 驾驶原因 |
| RTD | Returned To Duty | 返回工作岗位 |