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逆弧 | |||
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整流器的逆弧 | |||
电路中逆弧; 整流器中逆弧 | |||
逆弧 | |||
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逆弧 | |||
发生逆弧 |
arc backs : 20 phrases in 11 subjects |
Athletics | 1 |
Desert science | 1 |
Earth sciences | 2 |
Electronics | 1 |
Geology | 1 |
Metallurgy | 1 |
Oil / petroleum | 6 |
Technology | 2 |
Textile industry | 3 |
United Nations | 1 |
Wushu | 1 |