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single wire system | |||
single-wire system | |||
one wire system | |||
earth return system |
单线制: 32 phrases in 10 subjects |
Automobiles | 2 |
Aviation | 1 |
Electronics | 10 |
General | 1 |
Hydroelectric power stations | 1 |
Mechanics | 1 |
Metallurgy | 3 |
Oil / petroleum | 1 |
Technology | 8 |
Telecommunications | 4 |