“deep space datum”的概念、定义、翻译、参考文献-科学参考

单词	deep space datum
释义	deep space datum Encyclopedia 工学行星大地测量学释 deep space datum深空基准用于开展深空探测的各种模型、资料和协议的集合。主体内容包括国际天球参考架（ICRF）、国际地球参考框架（ITRF）、地球定向参数（EOP）等。
随便看	formation oil volume factor formation original gas-oil ratio formation pressure formation pressure prediction and monitoring system formation protection formation pulse response formation-resistivity formation rule formation skydiving formation structural map formation test data formation time formation tracking control formation water formation water compressibility formation water viscosity temperature curve formative formative assessment formative norm of translation format management of electronic records format of ancient books format of polygraph test Format Requirements for Long-term Preservation of Fixed-layout Electronic Records Formats and Their Sizes of Books and Magazines formatted

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。