“alum policies”的概念、定义、翻译、参考文献-科学参考

单词	alum policies
释义	alum policies Encyclopedia 历史学经济财政释 alum policies矾法国家对矾征税和榷禁专卖的各种制度。
随便看	optical protection coating optical proximity effect correction optical pulsar optical pulsation optical pulse optical pump optical pumping optical pumping, light pumping optical pumping magnetometer optical pupil optical purity optical pyeometer optical pyrometer optical quenching optical radar optical radiation optical radiometric calibration field optical Ramsey fringes optical random access optical range finder optical receiver optical recording optical recording media optical rectification optical reflecting coating

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。