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差动继电器 chādòng jìdiànqì
el., meas.inst. differential relay
met. balanced relay; differential type relay
space biased relay
差动〔平衡〕继电器
commun. balanced relay
差动 继电器
: 25 phrases in 7 subjects
Air defense1
Automobiles1
Electric machinery2
Electronics3
Hydroelectric power stations5
Metallurgy2
Technology11