请输入您要查询的单词:

 

单词 Mohs' hardness scale
释义

Mohs' hardness scale

Definition
Series of ten minerals from the softest to the hardest, so arranged that the mineral with a lower number can be scratched by the mineral with the higher number: 1-talc, 2-gypsum, 3-calcit, 4-fluorite, 5-apatite, 6-orthoclase, 7-quartz, 8-topaz, 9-corundum, 10-diamond. Invented in 1812 by the German geologist Friedrich Mohs (1773-1839).
随便看

 

英汉经管词典收录了27404条经济管理类英汉双解词条,基本涵盖了经济学、管理学、金融学、会计学、证券期货、商务活动等领域的常用英语单词及短语词组的翻译及用法,是学习及工作的有利工具。

 

Copyright © 2000-2023 Newdu.com.com All Rights Reserved
更新时间:2025/4/18 8:10:12