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| quick action valve | |||
| pop valve | |||
| emergency valve | |||
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| emergency valve | |||
| 紧急 阀: 58 phrases in 12 subjects |
| Automobiles | 2 |
| Business | 1 |
| Compressors | 2 |
| Drilling | 2 |
| Electronics | 7 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Mining | 4 |
| Oil / petroleum | 3 |
| Rail transport | 10 |
| Space | 3 |
| Technology | 22 |
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