 |
| |||
| silicon seal; O-ring seal | |||
| 密封胶圈: 26 phrases in 8 subjects |
| Automobiles | 11 |
| Bridge construction | 1 |
| Chemistry | 2 |
| Drilling | 1 |
| Metallurgy | 2 |
| Polymers | 1 |
| Space | 1 |
| Technology | 7 |
|
| |||
| silicon seal; O-ring seal | |||
| 密封胶圈: 26 phrases in 8 subjects |
| Automobiles | 11 |
| Bridge construction | 1 |
| Chemistry | 2 |
| Drilling | 1 |
| Metallurgy | 2 |
| Polymers | 1 |
| Space | 1 |
| Technology | 7 |