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| |||
| 放水阀; 放水活门 | |||
| 排液阀; 放泄活门 | |||
| 排油水阀 | |||
| 放空阀 | |||
| 疏水阀 | |||
| 排油阀 | |||
| 放出阀; 排泄阀 | |||
| 卸料阀 | |||
| 风管排水机 | |||
| 排污阀 | |||
| 放泄阀 | |||
| 排水阀 | |||
| |||
| 排水阀 | |||
| drain valve: 65 phrases in 12 subjects |
| Automobiles | 4 |
| Aviation | 15 |
| Compressors | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Hydroelectric power stations | 2 |
| Nautical | 3 |
| Navigation | 1 |
| Oil / petroleum | 5 |
| Shipbuilding | 3 |
| Space | 4 |
| Technology | 22 |
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