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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: Energy
Tilføj et nyt ordContributors in Coal
Coal
Diverse reserver
Energy; Coal
En forsyningskilde, har ikke mere end 50 milliarder kubikfod af dedikerede Genoprettelige salgbar reserver og der falder ind under definitionen af levere kilde.
sammenkobling
Energy; Coal
To eller flere elektriske systemer at have en fælles transmissionslinje, der tillader en strøm af energi mellem dem. Fysiske tilslutning af elektriske power transmission faciliteter giver mulighed ...
lumen/watt (LPW)
Energy; Coal
En foranstaltning af effekten (effektivitet) af lamper. Angiver det mængden af lys (lumen) udsendes af lampen for hver enhed af elektrisk effekt (watt) anvendes.
tværfaglig salg
Energy; Coal
Omfatter beløb, der opkræves af den elektriske afdeling på told eller andre angivne satser for elektricitet leveret til andre nytte afdelinger.