u každé sekce z pece se projevovalo

u každé sekce z pece se projevovalo silné poškození zdiva.

Results (English) 1:

for each section of the furnace with a strong damage to the masonry.

Results (English) 2:

for each section of the furnace is manifested severe damage to the walls.

Results (English) 3:

for each section of the oven was a strong damage to masonry.