Diesel transport was the next stage of evolution. Now gypsum is carried by trucks, and raw material is elevated with the help of special conveyor.
后来的一段时期采用柴油机运输，现在则采用轨道运输，利用特殊的传送带输送原料。
Transmission or conveyor belts or belting, of textile material, whether or not impregnated, coated, covered or laminated with plastics, or reinforced with metal or other material.
纺织材料制的传动带或输送带及带料，不论是否用塑料浸渍、涂布、包覆或压层，也不论是否用金属或其他材料加强。
At the bottom of any required length of conveyor spiral groove opening unloading material.
在输送机螺旋槽体的底部任意要求的长度开口卸出物料。
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