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групповой вентиль | |||
блок клапанов | |||
клапанный блок | |||
группа клапанов |
阀组: 41 phrases in 11 subjects |
Construction | 1 |
Drilling | 1 |
Electronics | 3 |
Forestry | 1 |
General | 22 |
Industry | 1 |
Oil and gas | 1 |
Oil and gas technology | 1 |
Oil processing plants | 2 |
Oilfields | 1 |
Technology | 7 |