pneumatically-powered concrete pump

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mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Radio masts and towers — Masts of the Rugby VLF transmitter in England … Wikipedia
commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… … Universalium
Abrasive blasting — Sandblasting a stone wall Diesel powered compressor used as an air supply for sandblasting … Wikipedia
Thermal power station — Republika Power Plant, a thermal power station in Pernik, Bulgaria … Wikipedia

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