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结构试验测试 | |||
结构试验 |
structure test : 31 phrases in 11 subjects |
Aviation | 6 |
Electricity | 1 |
Electronics | 3 |
Foreign trade | 2 |
Hydroelectric power stations | 1 |
Information technology | 1 |
Navigation | 1 |
Road construction | 1 |
Shipbuilding | 1 |
Space | 11 |
Technology | 3 |