短语词组短语Raw coal feed bin 原煤喂料仓coal pulverizing bin system 制粉系统pulverized coal storage bin 煤粉仓crushed coal storage bin 碎煤贮藏箱coal buffer bin 煤仓间coal storage bin 储煤槽仓coal dust bin 煤粉仓run coal bin 原煤仓erect coal bin 直立煤仓 返回 coal bin