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arc crater
弧坑
电弧陷口
arc crater
arc crest
arc current
arc current (焊接...
arc current frequency
arc cutting
arc cutting machine
arc cuttingmachine
arc de cercle
arc de circle
Arc de Triomphe
arc deflector
arc deionization
arc description
arc detector
arc digraph
arc discharge
arc discharge coating...
arc discharge tube
arc dissociation
arc dissociation unit
arc distance
arc distortion
arc drive characteristic
arc drop
arc drop loss
arc duration
arc dynamo
arc elasticity
arc elasticity of demand
arc electric
arc electrode
arc end
arc end loss
arc energy
arc eroded metal
arc erosion
arc excitation
arc extinction
arc extinguish chamber
arc extinguish device
arc extinguishing
arc extinguishing cha...
arc extinguishing medium
arc extinguishing sand
arc failure
arc feather edge saw ...
arc flame
arc flash welding
arc foil
arc force
arc function
arc furnace
arc furnace electrode
arc furnace electrode...
arc furnace electrode...
arc furnace electrode...
arc furnace electrode...
arc furnace flexible ...
arc furnace fume elbow
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