This is the 10181st most frequent Russian word.
бетонобойную
"Бетонобойную" means "concrete-piercing" or "designed to penetrate concrete."
Here, 'бетонобойную' modifies 'машину,' meaning 'concrete-breaking,' describing a machine tailored for breaking concrete.
Инженеры использовали бетонобойную машину для разрушения старого моста.
Engineers used a concrete-breaking machine to demolish the old bridge.
'Бетонобойными' serves as an adjective describing the tools (concrete-breaking), indicating their application.
На стройке работала бригада с бетонобойными инструментами.
At the construction site, a crew worked with concrete-breaking tools.
'Бетонобойные' attributes the 'concrete-breaking' quality to the properties being discussed.