As I recall, scientific German can generate words whose length exceeds the width of the page. instead of using a string of adjectives separated by commas, they are simply added to the word.
It is not the scientific German that generates these long words, it is rather the bureaucratic German.
Scientists prefer a plain language, they often separate long composed words, using dashes.
The Fa. Siemens had even invented own grammar rules and separated long words into their original components.
The long word in the picture can be written (according to the new grammar rules) as follows:
FuĂźboden-Schleifmaschinen-Verleih
And if this is still to difficult, you can even go further:
FuĂź-Boden-Schleif-Maschinen-Verleih
But most Germans do not have any problems with such big words.