“向上流动”的概念、定义、翻译、参考文献-科学参考

单词	向上流动
释义	向上流动 upward flow
随便看	checknut check nut check observation check of drawing check of drawings check of equipment check-off checkoff check off check of foundation subsoil check of procedure check of test equipment check operator checkout checkout console check-out counter checkout environment area checkout gear checkout operation manual checkout routine checkout stand checkout system checkout time check pawl check pawl pivot

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。