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quick-closing valve | |||
main stop valve |
速 关阀 : 15 phrases in 12 subjects |
Agriculture | 2 |
Automobiles | 1 |
Drilling | 1 |
General | 2 |
Mechanic engineering | 1 |
Nautical | 1 |
Navigation | 1 |
Oil / petroleum | 1 |
Oil processing plants | 1 |
Refrigeration | 1 |
Shipbuilding | 1 |
Technology | 2 |