“upholstery twill silk for picture mounting”的概念、定义、翻译、参考文献-科学参考

单词	upholstery twill silk for picture mounting
释义	upholstery twill silk for picture mounting Encyclopedia 工学绫释 upholstery twill silk for picture mounting裱画绫用作装裱中国画、书籍以及高级礼品盒等的绫类丝织物。
随便看	nonnegative definiteness nonnegative definite quadratic estimate non-negative definite quadratic estimator nonnegative divisor nonnegative element nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant nonnegative partial sum nonnegative quadratic form nonnegative semi-definite matrix nonnegative solution nonnegative splitting nonnegativity nonnegativity condition nonnegativity requirement non nesting matching non-nesting matching

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。