 |
| |||
| 复式压缩机 | |||
|
multiple compressor : 8 phrases in 6 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Sealing | 1 |
| Technology | 2 |
|
| |||
| 复式压缩机 | |||
|
multiple compressor : 8 phrases in 6 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Sealing | 1 |
| Technology | 2 |