Discharge tube: a closed insulating vessel containing a gas at lowpressure through which an electric current flows when sufficient voltage is applied to its electrodes.
放电管:装有低压气体的封闭绝缘容器,当电极有足够的电压时,通过它电流就开始流动。
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The welding wire is used for welding low carbon structural steel and low alloy steel. Such as ships, Bridges heavy-duty machines, boilers and pressurevessel etc.