“systems problem”概念、定义、翻译-科学时代

单词	systems problem
释义	社会学词汇手册 systems problem 系统问题
随便看	petition petition petition petitionary sentence petitioner petitioner petition for certiorari petitioning creditor Petition of Right petition of right petitio principii petit juror petit jury petit larceny petitmenginia Petit Nègre petitory action Petit Riens，Les pet name Peto-Prentice test PET--PET (polyester) PET (polyester) PET (polyethylene terephthalate) PET (potential evapotranspiration) Petralona skull

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。