 |
| |||
| 表面氧化锈，垢皮 | |||
| 表面结垢; 表面氧化皮 | |||
| surface scale: 6 phrases in 5 subjects |
| Compressors | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Metallurgy | 2 |
| Technology | 1 |
|
| |||
| 表面氧化锈，垢皮 | |||
| 表面结垢; 表面氧化皮 | |||
| surface scale: 6 phrases in 5 subjects |
| Compressors | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Metallurgy | 2 |
| Technology | 1 |