硬煤 meaning in Chinese

strong coal; hard coal; hards; anthracite

Hard coal - froth flotation testing - release evaluation
硬煤.泡沫浮选试验.释放评价
Hard coal and coke - mechanical sampling - general introduction
硬煤和焦炭.机械取样.一般导言
Hard coal . size analysis by sieving
硬煤.用筛分进行粒度分析
Throughput capacity is up to 5 . 000 t h , cut size is up to 25 - 300 mm
给料：褐煤硬煤石灰石膏矿物。
Hard coal and coke - mechanical sampling - sampling from moving streams
硬煤和焦炭.机械取样.流水线取样

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