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| annular valve; needle control valve; needle nozzle; needle-type valve | |||
| needle valve | |||
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| annular valve | |||
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针形阀 : 16 phrases in 6 subjects |
| Drilling | 1 |
| General | 1 |
| Mechanics | 1 |
| Oil / petroleum | 3 |
| Technology | 9 |
| Textile industry | 1 |
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