“雪日”概念、定义、翻译-科学时代

单词	雪日
释义	教育学词汇手册雪日 snow day
随便看	threshold condition threshold condition threshold condition threshold-crossing data threshold-crossing model threshold current threshold depth threshold detection threshold detector threshold dosage threshold dose threshold dose threshold dose threshold dose threshold dose threshold effect threshold effect threshold effect threshold energy threshold energy threshold energy threshold energy threshold energy of fission threshold field threshold field

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。