| 单词 | wad |
| 释义 | wad [wäd] MINERALOGY A massive, generally soft, amorphous, earthy, dark- brown or black mineral composed principally of manganese oxides with some other minerals, and formed by decomposition of manganese minerals. Also known as black ocher; bog manganese; earthy manganese. ORDNANCE A felt or cardboard pad used to secure the propellant in place in cartridges. Also known as wadding. |
| 随便看 |
|
科学参考收录了103327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。