 |
| |||
| auxiliary valve; utility valve | |||
| pilot valve | |||
| booster valve; jockey valve; service valve | |||
| |||
| service valve | |||
|
辅助阀 : 29 phrases in 7 subjects |
| Architecture | 1 |
| Automobiles | 6 |
| Aviation | 4 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Shipbuilding | 5 |
| Technology | 11 |
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