Search Results - "charcoal"

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    Life drawing in charcoal by Graves, Douglas R

    Published 1973
    Subjects: “…Charcoal drawing…”
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    Unknown
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    A handbook of small-scale energy technologies practical answers

    Published 2012
    Table of Contents: “…Machine generated contents note: 1.Introduction -- 2.Solar photovoltaic energy -- 3.Solar photovoltaic water pumping -- 4.Solar thermal energy -- 5.Solar drying -- 6.Solar distillation -- 7.Micro hydropower -- 8.River turbines -- 9.Biogas -- 10.Liquid biofuels and sustainable development -- 11.Biomass as a solid fuel -- 12.Charcoal production -- 13.Energy for rural communities -- 14.Refrigeration for developing countries…”
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    Unknown
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