“North American shield”的概念、定义、翻译、参考文献-科学参考

单词	North American shield
释义	North American shield Encyclopedia 理学北美地盾释 North American shield北美地盾位于北美洲中部、北部及格陵兰绝大部分地区的地盾。
随便看	factor-commutator functor factor-commutator group factor-complex factor congruence factor dimension factored factor effect factor functor factor graph factor group factor-group factorgroup factor groupoid factorial factorial coefficient factorial condition factorial constant factorial cumulant factorial design factorial design-overlapping resolution mapping factorial effect factorial experiment factorial experiment design factorial function factoriality

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。