This is the 4900th most frequent Russian word.
катеров
"Катеров" is the genitive plural form of "катер," meaning "motorboats" or "speedboats."
Here, 'катеров' is the genitive plural form of 'катер', meaning 'motorboat'. It indicates possession or quantity.
В порту стояло несколько катеров.
There were several motorboats in the harbor.
In this sentence, 'катеров' is used in the genitive plural form to indicate the objects being repaired, 'motorboats'.
Он занимается ремонтом катеров.
He is engaged in repairing motorboats.
'Катеров' in this context is the genitive plural form used to imply the type of items whose rental prices have increased—'motorboats'.