| Ash relates to impurities consisting of silica, iron, alumina, and other noncombustible matter that are contained in coal. Ash increases the weight of coal, adds to the cost of handling, and can affect its burning characteristics . The inorganic residue after burning, especially of coal. Ignition generally alters both the weight and the composition of the inorganic matter. Quelle: Gloria Buenavista - 122199/2006-10-01
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ash (Ash is the incombustible residue left over after ...)
Coal (Coal is formed from plant and animal matter that ...)
Carbon brush (Carbon brush is being used to transfer ...)
Ash yield (Ash yield pertains to the percentage of ...)
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