| PLC | Programmable Logical Controller | 可编程逻辑控制器 |
| PLC | Platform LAN Connection | 局域网连接平台 |
| PLC | Public Limited Company | 公开有限公司 |
| PLC | Pathetic Losers Club | 可悲的失败者俱乐部 |
| PLC | Payload Commander (NASA) | 有效载荷指挥官(NASA) |
| PLC | Platform LAN Connect Device (Intel Pentium processors) | 平台LAN连接设备(Intel Pentium处理器) |
| PLC | Public Limited Company (UK) | 公共有限公司(英国) |
| PLC | Project Launch Coordinator | 项目启动协调员 |
| PLC | Programmable Logic Controller | 可编程逻辑控制器 |
| PLC | Program Leadership Committee | 项目领导委员会 |
| PLC | Pigmented Lesion Clinic | 色素病变门诊 |
| PLC | Programming Language Committee | 编程语言委员会 |
| PLC | Professional Loss Control | 专业损失控制 |
| PLC | Phospholipase C | 磷脂酶C |
| PLC | Platoon Leaders Class | 排长班 |
| PLC | Palestinian Legislative Council | 巴勒斯坦立法委员会 |
| PLC | Powerline Communication | 电力线 |
| PLC | Product Life Cycle | 产品生命周期 |
| PLC | primary liver(cell)cancer | 原发性肝癌 |
| PLC | Packet Loss Concealment | 数据包丢失隐藏 |
| PLC | Process Loop Control | 过程回路控制 |
| PLC | Primary Leadership Course (US Army) | 初级领导力课程(美国陆军) |
| PLC | Partido Liberal Constitucionalista (Constitutional Liberal Party; Nicaragua) | 尼加拉瓜宪法自由党 |
| PLC | Performance Level Category | 性能级别类别 |
| PLC | Posterior Lateral Complex (ligament in knee) | 后外侧复合体(膝关节韧带) |
| PLC | Platoon Leader's Course (USMC Officer Program) | 领导者的课程(排符合美国海军陆战队军官程序) |
| PLC | Pneumatic Logic Control (Houston, TX) | 气动逻辑控制(德克萨斯州休斯顿) |
| PLC | Private Label Card | 专用标签卡 |
| PLC | Pilot Lighting Control (aviation) | 飞行员照明控制(航空) |
| PLC | Partners in a Learning Community | 学习社区中的合作伙伴 |
| PLC | Program Library Control | 程序库控制 |
| PLC | Publicly Listed Company | 公开上市公司 |
| PLC | Projected Line Charge | 预计行费用 |
| PLC | Psycho Le Cemu (Japanese band) | Psycho Le Cemu(日本乐队) |
| PLC | Public Level Crossing | 公共平交道口 |
| PLC | Peace, Love, and Care | 和平、爱和关怀 |
| PLC | Patrol Leaders' Council (Boy Scouts of America) | 国务院领导的巡逻(美国童子军) |
| PLC | Philip Leverhulme Centre (Reaseheath College, England) | 菲利普·勒弗胡尔姆中心(英国Reaseheath学院) |
| PLC | Presbyterian Ladies' College (Australia) | 长老会女生学院(澳大利亚) |
| PLC | Professional Learning Community (education) | 专业学习社区(教育) |
| PLC | protein-lipid complex | 蛋白质-脂质复合物 |
| PLC | proninsuin-like component | 前胰岛素样成分 |
| PLC | hepatoma cell line | 肝癌细胞系 |
| PLC | proinsulin-like componud | 胰岛素原样成分 |
| PLC | pseudolymphocytic choriomeningitis | 假淋巴细胞性脉络膜脑膜炎 |
| PLC | Power Line Communication | 电力线通信 |
| PLC | Power Line Communications | 电力线通信 |
| PLC | pharyngo-laryngitis chronica | 慢性咽喉炎 |
| PLC | Programming Learning Center | 编程学习中心 |
| PLC | potentially leukemic cell | 潜在白血病细胞 |
| PLC | Power Line Carrier | 电力线载波 |
| PLC | Add-in file (functions - macros - applications) (Lotus 1-2-3) | 加载项文件(函数-宏-应用程序)(Lotus 1-2-3) |
| PLC | Personalized Localized And Customized | 个性化本地化和定制 |
| PLC | Politically Limited Competitiveness | 政治竞争力有限 |
| PLC | Patrol Leaders Council | 巡逻领导委员会 |
| PLC | Patrol Leadership Committee | 巡视领导委员会 |
| PLC | Pathfinder Learning Center | 开拓者学习中心 |
| PLC | P-CAD Database | P-CAD数据库 |
| PLC | Platinum Ladeez Clique | 白金Ladeez Clique |
| PLC | Positive Living Centre (Australia) | 积极生活中心(澳大利亚) |
| PLC | Preparative Liquid Chromatography | 制备液相色谱法 |
| PLC | Polymer Liquid Crystal | 聚合物液晶 |
| PLC | Planar Lightwave Circuit | 个将平面波导线路 |
| PLC | Potomac Literary Club | 波托马克文学俱乐部 |
| PLC | Private Leased Circuit | 专用线路 |
| PLC | Public Service Commission (Canada) | 公共服务委员会(加拿大) |
| PLC | Pendulum Live Community | Pendulum Live社区 |
| PLC | Pakistan Law Commission | 巴基斯坦法律委员会 |
| PLC | Preliminary Load Cycle | 初步负载循环 |
| PLC | Princeton Listening Center | 普林斯顿听力中心 |
| PLC | Partial Loss of Capacity (SDH or Sonet Technology) | 部分容量损失(SDH或Sonet技术) |
| PLC | Perlecan | 佩莱坎 |
| PLC | Programmable Logic Control(ler) | 可编程逻辑控制(ler) |
| PLC | Project Life Cycle | 项目生命周期 |
| PLC | Parti Liberal du Canada | 加拿大自由党 |
| PLC | Post Literacy Class | 识字后课程 |
| PLC | Puerto La Cruz (Venezuela) | 圣克鲁斯港(委内瑞拉) |
| PLC | Point of Last Contact | 最后接触点 |
| PLC | Phase-Locked Clock | 锁相时钟 |
| PLC | Post-Lunch Coma | 午餐后昏迷 |
| PLC | Park Lane College (UK) | Park Lane学院(英国) |
| PLC | Power Line Carrier (using power lines to carry data/voice signals) | 电力线载波(使用电力线路信号进行数据/声音) |
| PLC | Portevin le Chatelier (Effect) | Portevin le Chatelier(效果) |
| PLC | Partners for Livable Communities | 宜居社区合作伙伴 |
| PLC | Power Level Controller | 功率电平控制器 |
| PLC | Power Line Conditioner | 电源线调节器 |
| PLC | Progressive Learning Center | 进步学习中心 |
| PLC | Power Line Coupler | 电力线耦合器 |
| PLC | Program Leaders Committee | 项目领导委员会 |
| PLC | Proto-Lower Cross | 原型下十字 |
| PLC | Pressurized Logistic Carrier | 加压物流运输船 |
| PLC | Presidents Leadership Class (undergraduate leadership development program, University of Colorado, Boulder) | 总统领导力班(科罗拉多大学博尔德分校本科领导力发展课程) |
| PLC | Personal Line of Credit | 个人信用额度 |
| PLC | Program Level Change (tape) | 程序级别更改(磁带) |
| PLC | Programmable Logic Circuit | 可编程逻辑电路 |
| PLC | pityriasis lichenoides chronica | 慢性地衣糠疹 |
| PLC | prenatal loving care | 产前关爱 |
| PLC | pleural calcification | 胸膜钙化 |