“primary standard machine of vickers hardness”的概念、定义、翻译、参考文献-科学参考

单词	primary standard machine of vickers hardness
释义	primary standard machine of vickers hardness Encyclopedia 工学硬度计量技术释 primary standard machine of vickers hardness维氏硬度基准装置用来复现和保存维氏硬度量值单位，用作统一中国维氏硬度值的最高依据的装置。由中国计量行政部门批准建立。
随便看	pre-anesthesia evaluation pre-anesthesia interview pre-anesthesia（preoperatuve）fasting preanodize preantenna preantennal ganglion Pre-approval of the use of manning quotas preassemble preassembly pre-assembly modularization design of concentrators preassigned preatomick preattentive processing preauricular fistula preaxiomatic prebacillum prebake pre-base prebend pre big bang model pre-big-bang model prebigbang model Prebisch-Singer hypothesis preboiler preboring

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。