“滹沱系”的概念、定义、翻译、参考文献-科学参考

单词	滹沱系
释义	滹沱系 Encyclopedia 理学滹沱系释 hutuo System滹沱系古元古代的滹沱纪（距今25亿～18亿年）这一时期形成的地（岩）层。
随便看	prestressed concrete cylinder pipe prestressed concrete structure prestressed jack prestressed steel bar binding machine prestressedsteel heading prestressed steel tensioning machine prestressed strand prestressed structure prestressed tendons with anchors prestressed tendons with connectors prestressed wire prestressing prestressing technique prestressing tendon prestretching prestripping prestructure presubscript presumption presumption of causation presumption of constitutionality presumption of fault presumption of innocence presumptive pre-supernova

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。