“镜头有效口径”概念、定义、翻译-科学时代

单词	镜头有效口径
释义	美术、书法与摄影词汇手册镜头有效口径 lens bore
随便看	chain selling chain shift chain signification chain slip chain sounding line chain starting reaction chain store chain store chain store operation chain stripper chain structure chain suspension chain system of import and export chain tale chain-tensioning device chain termination method chain-track combine chain transmission chain-type nervous system chain verse chain warehouse chain-weighted price index chain winch chainwork chair

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。