 |
| |||
| vacuum seal; vacuum-tight; vacuum tight seal | |||
| vacuseal | |||
| closing vacuum | |||
| hermetic seal; leak tight; vacuum seal (tight); vacuum tight; vacuum tightness | |||
| 真空密封: 38 phrases in 12 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Business | 1 |
| Chemistry | 6 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 9 |
| Oil processing plants | 1 |
| Plastics | 1 |
| Technology | 9 |