“下向贸易--低档贸易”概念、定义、翻译-科学时代

单词	下向贸易--低档贸易
释义	国际贸易词汇手册 trading down 下向贸易，低档贸易
随便看	ozone absorption ozone amount ozone balance ozone behaviour ozone budget ozone change ozone cloud ozone column ozone concentration ozone concentration ozone content ozone control ozone cutoff ozone cycle ozone-damaging emission ozone decline [decrease] ozone depleting potential（ODP） ozone depletion ozone-depletion potential ozone depletion potential ozone depletion potential (ODP) ozone depletion potential--ozone depletion potential (ODP) ozone depletor ozone-destroying potential ozone destruction

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。

trading down