请输入您要查询的字词:
单词
World Metrology Day
释义
World Metrology Day
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
the ceramic of Qing dynasty
the ceramic of Song dynasty
the ceramic of Sui dynasty, Tang dynasty and the Five dynasties
the ceramic of the Three Kingdoms, Wei, Jin and Northern and Southern dynasties
the ceramic of the Western Xia dynasty
the ceramic of Yuan dynasty
The Ceramics Gallery of the Palace Museum
the ceremonial music and dance shows with sitting musicians
the ceremonial music and dance shows with standing musicians
The Chairs
the chamber blasting engineering of PAOTAI Mount in Zhuhai Guangdong
The Changeling
the changing of feng and ya
The Changjiang Civilization Museum
the Changzhou school of painting
The Channel Tunnel
the characteristics of urbanization in China
The Characters in Drama of Guan Hanqing
the characters of hydrogeological borehole
The Charge of the Light Brigade
The Charter of the United Nations
The Chattering and the Song
The Cheater is Cheated
The Cheater's Biography
the chemical hazards in aquatic products
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:2025/12/16 4:33:05