“古环境变化”的概念、定义、翻译、参考文献-科学参考

单词	古环境变化
释义	古环境变化 Encyclopedia 理学古环境变化释 paleo-environmental change古环境变化地质历史时期地表环境（大气圈、水圈、生物圈、土壤圈和岩石圈等圈层）的变化。
随便看	principal normal line principal normal plane principal normal section principal normal surface principal normal vector principal number principal nutation principal object principal offender principal of land laws principal of least dissipation of energy principal open set principal optical axis principal orbit principal orbit type principal order principal order module principal parabola principal parameter principal part principal partition principal part of an infinitesimal principal plane principal plane of crystal principal plane of photograph

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。