granule materials pile 颗粒材料堆
The coal and limestone yards shall have a roofed covered area corresponding to the hopper zone and a portion of the materials pile to be transported by conveyor belts to the pulverizer.
煤料和石灰石场应有一个屋面遮盖区，用以遮盖漏斗区以及通过传送带输送至粉碎机的材料堆。
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