“同位素封闭体系”的概念、定义、翻译、参考文献-科学参考

单词	同位素封闭体系
释义	同位素封闭体系 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	directed set directed spanning tree directed strongly regular graph directed system directed technical change directed tetrahedron directed the security work of large-scale activities directed tree directed triple system directed union directed value directed web directed xy walk directed xy-walk direct effect direct effects hypothesis direct election direct electric heating method direct energy conversion operation direct ethanol fuel cell direct evaluation of external corrosion of oil and gas pipelines direct evaluation of internal corrosion of oil and gas pipelines direct exchange interaction direct expansion method direct-expansion refrigeration

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。