“historical calendar”概念、定义、翻译-科学时代

单词	historical calendar
释义	人口学词汇手册 historical calendar 历史大事记
随便看	weld crater weld cycle weld decay weld decay weld defect welded construction welded contact rectifier weld edgewise welded joint welded seal welded seal source welded steel pipe welded steel pipe welded structure welder welder rectifier welding welding welding welding apparatus welding arc voltage welding bench welding burner welding cable welding crack sensibility

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。