Coal geology and coal technology / Геология и технология каменного угля

Since early in history, mankind has drawn on the earth’s resources of energy to satisfy a variety of needs in daily life. The majority of this energy has traditionally been drawn from the world’s supplies of fossil fuels (coal and petroleum) and, despite developments ш nuclear technology or solar power, this trend is likely to continue well into the forseeabk Future. The mining of coal is an essential component in rhe economy of many countries, both to supply the needs of their own industries and, in some cases, the industries of others less welt endowed with energy resources as well. <...>