European Computer Trade Show欧洲计算机贸易展 Engine Coolant Temperature Sensor发动机水温传感器 Echo Canceller Testing System回声消除器测试系统 European Credits Transfer System欧洲学分输送系统 Enterprise Complaint Tracking System企业投诉跟踪系统 Explosives Classification Tracking System炸药分类跟踪系统 European Credit Transfer System欧洲学分转换系统 Erie County Technical School (Pennsylvania)宾西法尼亚州县的技术学校(e) European Community Course Credit Transfer System欧洲共同体课程学分转换系统 Executive Correspondence Tracking System执行对应的追踪系统 Effective Capital Transfer Strategy有效的资金转移的策略 Electronic Combat Training Simulator电子作战训练模拟器 Electronic Computer Trade Show电子计算机的交易会 Electronic Transfer Association电子转帐协会 Electronic Combat Training System电子作战训练系统