“保持朝上--切勿倒置”概念、定义、翻译-科学时代

单词	保持朝上--切勿倒置
释义	物流与仓储词汇手册 keep upright 切勿倒置，保持朝上
随便看	Proportio proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportional proportional proportional-action coefficient proportional allocation proportional analogy proportional band proportional band proportional body-measuring unit proportional chamber proportional circle proportional circle map

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。

keep upright