“first occurrence”的概念、定义、翻译、参考文献-科学参考

单词	first occurrence
释义	first occurrence Encyclopedia 理学生物地层带释 first occurrence低位产出点在某一个地质剖面中，某一化石分类单元在该剖面上出现的最低层位。
随便看	Guilin Office Museum of Eighth Route Army Guilin opera Guilin opera music Guilin Opera Troupe of the Guangxi Zhuang Autonomous Region Guilin osmanthus tea Guilin Park Guilin Shi Guilin Zengpiyan Ruins Museum guillaume alloy Guillaume Apollinaire Guillaume, Charles Édouard Guillaume Costeley Guillaume crater Guillaume de Machaut Guillaume de Rubruquis Guillaume Dufay Guillaume-François-Antoine de L’Hospital Guillaume Tell Guillaume Wertheim Guillermo Cabrera Infante Guillermo Valencia Guillery impact test guillotine guillotine factor guilu concentracted decoction

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。