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
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