“principal focal distance”概念、定义、翻译-科学时代

单词	principal focal distance
释义	电子通信与自动控制技术词汇手册 principal focal distance 主焦距
随便看	group concubinage group concubinage group congeniality group consciousness group consolidated balance sheet group consolidated balance sheet group constraint group contact group contract group control supervisory panel group correction group counseling group creative director (GCD) group cultivation bed group data group decision group decision-making group decision-support system (GDSS) group decision support system（GDSS） group delay group delay group demography group deposit administration annuity group depreciation group depreciation

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。

principal focal distance