“佩特拉古城”的概念、定义、翻译、参考文献-科学参考

单词	佩特拉古城
释义	佩特拉古城 Encyclopedia 历史学亚洲文物释 Petra佩特拉古城约旦著名古城遗迹。为公元前4～公元2世纪纳巴泰王国（Nabataean）首都。
随便看	precursor of delayed proton emission precursor of nuclide precursor of the active ingredient precursor pulse precursor radiation precursors precursor spike precursor star precursor wave of storm surge predaceous fungi predation predation and parasitism predation behavior predative parasitism predator predator-prey interaction predator prey model predator-prey model predator-prey system predator regulation of rodent population predatory economic system predatory insect natural enemy predatory Lacewing Predatory ladybug predatory state

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。