“文献半衰期”的概念、定义、翻译、参考文献-科学参考

单词	文献半衰期
释义	文献半衰期 Encyclopedia 管理学文献半衰期释 literature half-life文献半衰期已出版的文献中有一半已不使用的时间。衡量文献老化速度的指标。
随便看	matrix kernel matrix lens matrix logarithm matrix manifold matrix manipulation matrix mechanics matrix method matrix minimal polynomial matrix model matrix modifier matrix monotone function matrix multiparticulate sustained release preparations matrix multiplication matrix-multiplication exponent matrix multisplitting method matrix norm matrix normal distribution matrix notation matrix number matrix of a bilinear form matrix of a formula matrix of a linear transformation matrix of a quadratic form matrix of coefficients matrix of connective tissue

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。