“使用费”概念、定义、翻译-科学时代

单词	使用费
释义	经济学词汇手册 user charge 使用费
随便看	flow characteristic flow characteristic of control valve flow characteristics flowchart flow chart flow chart flow chart flow chart flow chart flow chart flowchart flowchart flowchart flow chart flowchart flowchart flow chart flow chart flowchart flow classification flow cleavage flow coating flow coefficient flow coefficient flow coefficient

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。

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