“fire-resistant grade of building”的概念、定义、翻译、参考文献-科学参考

单词	fire-resistant grade of building
释义	fire-resistant grade of building Encyclopedia 工学结构抗火释 fire-resistant grade of building建筑物耐火等级衡量建筑物耐火程度的分级标准。是建筑设计防火技术措施中最基本的措施之一。
随便看	helium main-sequence helium method helium-neon helium-neon laser helium optical pumping magnetometer helium-poor star helium production helium refrigerator helium-rich core helium-rich star helium separation system helium shell helium shell flash helium star helium-strong star helium variable helium-weak star helium white dwarf He Liutang helix helix angle helix array helix chain helix-coil transition helix feed

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。