“ECHO” 英文缩写

• ECHO Embedded Component Historic Object    嵌入组件历史对象
• ECHO Display other commands as they are executed    执行时显示其他命令
• ECHO Enhanced Computer-to-Human Output    增强人机输出
• ECHO Electronic Commerce For Health Organizations    卫生组织电子商务
• ECHO Education Careers Health Opportunities    教育职业健康机会
• ECHO Extended Campus Health Occupations    扩展校园卫生职业