“定期作业”概念、定义、翻译-科学时代

单词	定期作业
释义	林业词汇手册定期作业 periodic working
随便看	custom rate Customs customs customs customs customs customs customs act customs administration customs agency customs agent customs agreement customs and excise customs and usage customs area customs area customs attache customs authority customs barrier customs barrier customs bill of entry customs bill of lading customs bond customs bond customs bond

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。