 |
vacuum break
| valve
| vacuum break | |
| el.mach. | 真空破坏 |
| plast. | 真空解除 |
| valve | |
| hydroel.st. | 活门; 电子管; 真空管 |
| space | 排气阀; 通气阀门; 阀 |
| tech. | 阀 |
| |||
| 真空破坏 | |||
| 真空解除 | |||
| 破坏真空 | |||
|
vacuum break valve : 5 phrases in 3 subjects |
| Automobiles | 3 |
| Hydroelectric power stations | 1 |
| Nuclear and fusion power | 1 |
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