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| 表层介质; 表面材料 | |||
| 面层材料; 表层材料 | |||
| surface material: 20 phrases in 11 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronics | 1 |
| Engineering geology | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Refrigeration | 1 |
| Space | 2 |
| Technology | 8 |
| Water resources | 1 |
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