Error误差 External Rate Of Return外部的回报率 Engineering Revision Request工程修改的要求 Eastern Railroad东方的铁路公司 Economic Rate of Return[经] 经济变益率 Error Queue错误排队 Engineering Release Record工程释放的记录 Emergency Response Roster应急响应的名单 Ellis River Riders艾利斯河的选手 Employee Rights and Responsibilities员工的权利和义务 Engineering Research Report工程的研究报告 Employment Responsibilities And Rights就业责任和权利 Equivalent Range Rate同等距离率 Elastic Round Robin弹性圆知更鸟 Exhaustive Round Robin详尽的圆知更鸟