kolejowymi

In a sentence

• Podróżowałem kolejowymi szlakami po całej Polsce.

  I traveled on railway routes across all of Poland.

  In this sentence, 'kolejowymi' is an adjective describing 'szlakami' (routes). It indicates that the routes are associated with the railway system.

• Prace remontowe na kolejowymi mostach zakończono.

  Renovation works on the railway bridges have been completed.

  Here, 'kolejowymi' modifies 'mostach' (bridges), specifying that the bridges are related to the railway context.

• Nasza firma dostarcza kolejowymi transportami towary w całym kraju.

  Our company delivers goods across the country using railway transports.

  In this example, 'kolejowymi' is linked to 'transportami' (transports), denoting that the means of transport are relevant to the railway system.