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| 节流阀; 高压调节阀; 【铁】高压调节阀 | |||
| throttling valve: 15 phrases in 5 subjects |
| Automobiles | 5 |
| Compressors | 2 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Technology | 2 |
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