“closed isotope system”的概念、定义、翻译、参考文献-科学参考

单词	closed isotope system
释义	closed isotope system Encyclopedia 工学〔地学中核技术〕释 closed isotope system同位素封闭体系在系统形成之后的地质作用中，对所研究的元素和同位素而言，没有物质的带入和迁出的体系。
随便看	astronomical azimuth Astronomical Bureau Astronomical Chapter astronomical chronicle astronomical climate astronomical clock astronomical clock tower astronomical clock-tower astronomical clocktower astronomical compass astronomical computing and demonstration device astronomical constant astronomical constant system astronomical coordinate astronomical coordinate measuring instrument astronomical coordinate system astronomical data center astronomical date astronomical day astronomical distance astronomical ephemeris astronomical geodesy astronomical geology astronomical image processing system astronomical image-processing system

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。