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脉冲法 |
pulse method : 39 phrases in 11 subjects |
Chemistry | 1 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 2 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 2 |
Information technology | 1 |
Metallurgy | 3 |
Oil / petroleum | 4 |
Plastics | 1 |
Technology | 21 |