- chain-type undercutter
- щебнеочистительная машина с режущей цепью
Англо-русский строительный словарь. 2013.
chain-type undercutter
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Track ballast — forms the trackbed upon which railroad ties (US) or railway sleepers (UK) are laid. It is packed between, below, and around the ties. It is used to facilitate drainage of water, to distribute the load from the railroad ties, and also to keep down … Wikipedia
