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| valve type bucket; valve type piston | |||
| valve-type piston | |||
| 阀式活 塞: 15 phrases in 8 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Compressors | 1 |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Technology | 7 |
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