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| 放泄水，油，气阀; 排放阀 | |||
| 排水阀 (门); 泄水阀; 排泄阀 | |||
| draining valve: 8 phrases in 5 subjects |
| Compressors | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Rail transport | 4 |
| Space | 1 |
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