“descriptor indexing”的概念、定义、翻译、参考文献-科学参考

单词	descriptor indexing
释义	descriptor indexing Encyclopedia 管理学叙词法释 descriptor indexing叙词法以自然语言词汇为基础、以规范化的叙词（主题词）作为检索标识的文献标引与检索方法。又称主题词法。
随便看	nonsingular conic nonsingular correlation nonsingular curve nonsingular data nonsingular distribution nonsingular divisor nonsingular extremal 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

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。