 |
pilot operated
| check valve
| pilot operated | |
| hydroel.st. | 先导式 |
| check valve | |
| hydroel.st. | 止回阀; 逆止阀 |
| pest.contr. | 单向阀 |
| space | 单向 阀; 检验阀 |
| tech. | 不回流阀 |
| check-valve | |
| scub. | 逆流防止阀 |
| |||
| 远距离操纵的; 随动操纵 | |||
| |||
| 先导式 | |||
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pilot operated check valve : 29 phrases in 10 subjects |
| Automobiles | 6 |
| Aviation | 1 |
| Compressors | 1 |
| Hydroelectric power stations | 4 |
| Metallurgy | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Technology | 11 |
| Textile industry | 2 |
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