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umformer | |||
constant-current transformer | |||
d-c transformer | |||
direct current voltage converter | |||
direct current transformer |
直 流变压器 : 9 phrases in 7 subjects |
Electric machinery | 1 |
Hydroelectric power stations | 1 |
Mechanic engineering | 1 |
Metallurgy | 1 |
Shipbuilding | 2 |
Solar power | 2 |
Technology | 1 |