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what is feeding crushing grinding as applied in coal preparation

Nov 01, 2018 3. Sample preparation and experimental3.1. Sample preparation. It is generally held that coal contained in tectonically altered zones is more prone to outbursts than coal within normal zones due to changes in texture or fabric caused by tectonic activities hence the former is called as the outburst-prone coal, the latter called as the non outburst-prone coal , , , .

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