very low grade coal的意思|示意
美 / /
英 / /
特低品位煤
very low grade coal的网络常见释义
特低品位煤 ... 低品位煤 low grade coal 特低品位煤 very low grade coal 碳质岩 carbonaceous rock ...
very low grade coal相关例句
Pulverized coal ash utilization rate is very low in Hunan low grade anthracite-fired power plant.
湘南某电厂采用低品位无烟煤燃烧发电，粉煤灰利用率低。