“上叠扇”概念、定义、翻译-科学时代

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。

单词	上叠扇
释义	地质学词汇手册上叠扇 suprafan
随便看	production possibility frontier production possibility frontier production possibility frontier (PPF) production possibility frontier--production possibility frontier (PPF) production possibility set production potential production price production print production quota production rate production rate production rate production rate production reactor production record production residue production rule production run production scenic artist production schedule production scheduling production school production secretary production seismic production sharing