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电气标准 | |||
电标准器 | |||
电量标准 |
electric standard : 20 phrases in 11 subjects |
Aviation | 1 |
Communications | 1 |
Drilling | 1 |
Earth sciences | 1 |
Electric machinery | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Geophysics | 1 |
International trade | 1 |
Shipbuilding | 1 |
Technology | 9 |