“light pencil”概念、定义、翻译-科学时代

单词	light pencil
释义	物理学词汇手册 light pencil 光束，光锥
随便看	social security card social security contribution social security contribution social security function social security fund social security outlay social security system social security system social security system social security tax social selection social selection social selection social self social self social self social sense social sensitivity social service social service social services social service system social set social situation social skill

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。