【电】 copper sulfide rectifier; copper-sulfied rectifier
vulcanization
【化】 cure; sulfofication; sulfurization; sulphidizing; vulcanization
xanthation
【医】 sulfurize
copper; cuprum
【医】 copper; Cu; cuprum
commutator; rectifier
【化】 commutator; current rectifier; rectifier
【医】 commutator; rectifier