“natural source”概念、定义、翻译-科学时代

单词	natural source
释义	环境科学与工程词汇手册 natural source 天然（污染）源
随便看	C of return phase cog cogency cogeneration cogeneration cogeneration level cogeneration power plant cogeneration turbine cogenetic co-geoid co-geoid cogged ingot cogging pass cogging roll cogging stand cogitation Cognac cognac cognac oil artificial cognate cognate cognate cognate cognate language cognate object

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。