“DDC system”概念、定义、翻译-科学时代

单词	DDC system
释义	请查阅DDC system--DDC system (direct digital control system)
随便看	Raurave rauvite rauvolfia rauwolfia rauwolfia serpentina ravages of war ravanastron rave rave ravel ravelling Ravel，Maurice ravenala raven paradox Raven's Progressive Matrices Raven's Progressive Matrices Test Ravenstein's Laws of Migration ravigote butter ravine ravine ravine ravine ravine Ravine Divide ravine forest

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。