AMBITIOUS PLANS TO ENLARGE RENEWABLE ENERGY SOURCES BIG CHALLENGES IN ENERGY SECTOR RESEARCH REVIVAL OF DEMAND IN EUROPE, BUT WITH PROSPECTS UNCERTAIN CHANGES IN CZECH MECHANICAL ENGINEERING ON THE DOORSTEP 1 2021
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AMBITIOUS PLANS TO ENLARGE RENEWABLE ENERGY SOURCES BIG CHALLENGES IN ENERGY SECTOR RESEARCH REVIVAL OF DEMAND IN EUROPE, BUT WITH PROSPECTS UNCERTAIN CHANGES IN CZECH MECHANICAL ENGINEERING ON THE DOORSTEP 1 2021