| |||
表面密度 | |||
面密度; 面质量密度 | |||
面层密度; 地表密度 | |||
| |||
…面密度; 面积; 面 |
surface density: 30 phrases in 13 subjects |
Agriculture | 1 |
Automobiles | 1 |
Business | 1 |
Chemistry | 1 |
Electronics | 5 |
Furniture | 1 |
Hydroelectric power stations | 1 |
Information technology | 1 |
Metallurgy | 2 |
Metrology | 2 |
Physics | 2 |
Technology | 10 |
Telecommunications | 2 |