“直径标准器”的概念、定义、翻译、参考文献-科学参考

单词	直径标准器
释义	直径标准器 Encyclopedia 工学实物标准器释 diameter artefact直径标准器形状良好、直径量值稳定的圆柱形或球形实物标准器。用以定义、实现、保持、复现直径量值。
随便看	group of asteroids group of automorphisms group of base points group of binary numbers group of boundaries group of canonical transformations group of classes group of classes of algebras group of coboundaries group of cocycles group of coefficients group of collineations group of comets group of conformal transformations group of congruence classes group of congruence transformations group of covering transformations group of curves group of cycles group of death group of diffeomorphisms Group of Eight Group of Experts on the Scientific Aspects of Marine Pollution group of figures group of finite order

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。