“covered canal”概念、定义、翻译-科学时代

单词	covered canal
释义	水利水电词汇手册 covered canal 封闭式渠道，加盖渠道
随便看	tariff nomenclature tariff on books tariff on books tariff on tapering scale tariff preference tariff preference tariff preference tariff premium tariff protection tariff protection tariff protection tariff questions tariff quota tariff quota tariff quotas tariff rate tariff rate tariff rate tariff rate tariff rate tariff rate of protection tariff-rate quota Tariff Reform League tariff regulation tariff schedule

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。

covered canal