The noise from seventy or eighty broken sewing machines is deafening. Tell me how you understand this sentence.

The noise from seventy or eighty broken sewing machines is deafening. Do you understand this sentence to mean that the environment is poor? According to relevant information, there are 70 or 80 broken sewing machines, which reflects the crude and outdated production equipment of the factory. "Seventy or eighty women who are not even young" shows the crowded factory environment. The heat emitted by the bodies of seventy or eighty women and the seventy or eighty light bulbs shows the stuffy heat of the factory environment.