“machine-readable catalogue（MARC）”概念、定义、翻译-科学时代

单词	machine-readable catalogue（MARC）
释义	图书馆、情报与文献学词汇手册 machine-readable catalogue（MARC）机读目录
随便看	directed study directed thinking direct education directed variation direct effect direct effect direct effects model direct e-mail marketing direct employee direct energy saving direct entrant direct entry direct entry phototypesetter direct environmental gradient direct esterification direct evaluation method direct evaporation deposition direct evaporator direct evidence direct evolution hypothesis direct exchange system direct-expansion coil direct expense direct experience direct exporting

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。