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arc backs
geophys. 逆弧
arc-back [ɑ:k'bæk]
gen. 整流器的逆弧
el. 电路中逆弧; 整流器中逆弧
met. 逆弧
arc back
archit. 逆弧
el. 发生逆弧
arc backs
: 20 phrases in 11 subjects
Athletics1
Desert science1
Earth sciences2
Electronics1
Geology1
Metallurgy1
Oil / petroleum6
Technology2
Textile industry3
United Nations1
Wushu1