“polished block”的概念、定义、翻译、参考文献-科学参考

单词	polished block
释义	polished block Encyclopedia 工学岩矿制片释 polished block岩矿光片将岩矿经过切割、磨平及抛光等工序后制备出的具有磨光表面，适合于光学显微镜下观察的岩矿小标本。
随便看	positive link positive literal positive logic positive logical calculus positive logical formula positive lossless storage positively definite positively definite form positively definite kernel positively definite matrix positively definite quadratic form positively graded module positively invariant subspace positively oriented base positively semi-definite positively stable point positively stable solution positive manifold positive map positive mapping positive mass conjecture positive matrix positive measure positive metric positive/negative helicity spinors

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。