| |||
| 分开式壳体外壳 | |||
| 对分夕卜壳 | |||
| 破裂套管 | |||
| 分体式机壳 | |||
| 中分式外壳 | |||
| 中分面式汽缸; 对分外壳 | |||
|
split casing : 24 phrases in 5 subjects |
| Chemistry | 2 |
| Compressors | 11 |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Technology | 8 |
| |||
| 分开式壳体外壳 | |||
| 对分夕卜壳 | |||
| 破裂套管 | |||
| 分体式机壳 | |||
| 中分式外壳 | |||
| 中分面式汽缸; 对分外壳 | |||
|
split casing : 24 phrases in 5 subjects |
| Chemistry | 2 |
| Compressors | 11 |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Technology | 8 |