“three-tier system--three-tier system (importers, wholesalers and retailers)”概念、定义、翻译-科学时代

单词	three-tier system--three-tier system (importers, wholesalers and retailers)
释义	国际贸易词汇手册 three-tier system (importers, wholesalers and retailers) 三级制（进口商、批发商及零售商）
随便看	internal control deficiency internal control evaluation internal control evaluation questionnaire internal control quality internal control questionnaire internal control questionnaire--internal control questionnaire（ICQ） internal control questionnaire（ICQ） internal control system internal control system Internal Control — Integrated Framework internal conversion internal conversion internal conversion internal conversion internal conversion coefficient internal conversion coefficient internal conversion electron internal conversion electron pair internal conversion electron pair formation internal conversion electron pair production internal conversion electron source internal conversion factor internal conversion neutron detector internal conversion ratio internal conversion spectrometer

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。

three-tier system (importers, wholesalers and retailers)