加热元件的由高电阻合金丝绕制成螺旋状，安置在炉膛二侧，炉底后墙及炉门上。
The heating element is screwed up by high resistance alloy wires and installed on the hearth's two sides, the rear wall of the furnace bottom and the furnace door.
加热元件的由高电阻合金丝绕制成螺旋状，安置在炉膛二侧，炉底后墙及炉门上。
The heating element is screwed up by high resistance alloy wires and installed on the hearth's two sides, the rear wall of the furnace bottom and the furnace door.
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