“parchment archives”的概念、定义、翻译、参考文献-科学参考

单词	parchment archives
释义	parchment archives Encyclopedia 管理学档案释 parchment archives羊皮纸档案古代和中世纪用羊皮纸制作的文书。
随便看	nonsingular form nonsingular H matrix nonsingular H-matrix nonsingular homology nonsingular integral equation nonsingularity non-singular lens nonsingular linear transformation nonsingular mapping non singular matrix non-singular matrix nonsingular matrix nonsingular model nonsingular operator nonsingular perspectivity nonsingular point nonsingular projective transformation non singular quadratic form non-singular quadratic form nonsingular quadratic form non singular real algebraic variety non-singular real algebraic variety nonsingular real algebraic variety nonsingular solution nonsingular space

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。