“up grade”的概念、定义、翻译、参考文献-科学参考

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。

单词	up grade
释义	up grade 上坡
随便看	secondary energy sources secondary enlargement secondary enrichment secondary entry point secondary environment secondary epilepsy secondary equation secondary error secondary eutectoid carbide secondary exchanger secondary excitation secondary expansion (使用时膨胀) secondary extinction secondary extinction coefficient secondary extra reflection secondary failure secondary fairway secondary fault secondary feeder secondary felling secondary fermentation secondary ferrite secondary fibrinolytic stage secondary field secondary file