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敏感元 件: 76 phrases in 15 subjects |
Agriculture | 1 |
Air defense | 1 |
Automobiles | 1 |
Aviation | 9 |
Chemistry | 1 |
Computer numerical control | 1 |
Drilling | 1 |
Electronics | 3 |
General | 2 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Refrigeration | 6 |
Shipbuilding | 2 |
Space | 23 |
Technology | 22 |