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Coal
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
Industry: Energi
Tambah istilah baruContributors in Batu bara
Coal
batubara bituminus
Energi; Batu bara
Batubara yang dianggap lebih baik daripada lignit tapi terburuk dari antrasit. It's sekitar 60-80% karbon dengan sisanya menjadi air, udara, hidrogen, dan belerang.
bahan ledak
Energi; Batu bara
Bahan yang terbuat dari bahan bakar dan oksidator. Hal ini biasanya tidak sangat sensitif dan memerlukan booster bahan peledak atau sekunder ledakan untuk memicu itu.
sirkuit ledak
Energi; Batu bara
An electric circuit that is used to detonate a primary explosive in a blasting cap.
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