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| 放空空气阀 | |||
| 呼吸阀; 泄压阀 | |||
| 放空阀 | |||
| 空气〔放空〕阀 | |||
| 连通大气阀 | |||
| 空气阀; 放气阀 | |||
| atmospheric valve: 11 phrases in 6 subjects |
| Architecture | 1 |
| Chemistry | 2 |
| Electronics | 4 |
| Oil / petroleum | 2 |
| Refrigeration | 1 |
| Technology | 1 |
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