“backward channel”概念、定义、翻译-科学时代

单词	backward channel
释义	信息与系统科学词汇手册 backward channel 反向信道，反向通道，返回通道
随便看	shove shove shovel shovel shovel shovel bucket shovel excavator shovelling shovel loader shovel loader shovel loader shovel mining shovel stowing shovelware shoving rake show show show show Showa Constitution show and tell lesson Show Boat show business showcard show card

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。