请输入您要查询的字词:
单词
世界计量日
释义
世界计量日
Encyclopedia
工学
国际计量
释
World Metrology Day
世界计量日
1875年5月20日,法国等17个国家的代表在巴黎签署《米制公约》,成立了旨在协调国际计量和米制发展的国际计量组织。为纪念《米制公约》的签署,1999年10月第21届国际计量大会确定5月20日为世界计量日,并得到国际法制计量组织的认同。
随便看
twofluid model of He Ⅱ
two fluid model of superconductivity
two-fluid model of superconductivity
twofold
twofold axis
twofold classification
twofold covering
twofold mystery
twofold relation
twofold [symmetry] axis
twofold symmetry axis
twofold transitive group
two-force member
two-form
two-for-one twisting machine
two-four system tablature
two-frequency laser
two-frequency mechanical dither laser gyroscope
two-gap model
Two Generations of TCM Practitioners
two-generator
two grade reagent
two-graph
two-group
Two Guides about Navigation Routes
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/7/25 19:55:26