rotary-tube type magnetic roasting furnace的意思|示意

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转管式磁焙烧炉

旋转筒式磁化焙烧炉 ... 旋转干燥器转筒干燥器 rotary drier 旋转筒式磁化焙烧炉 rotary-tube type magnetic roasting furnace 铲型舵 spade rudder; under hung rudder; underhung rudder ...