cutter-loading face
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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
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium
harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… … Universalium
Crusher — For other uses, see Crusher (disambiguation). A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more… … Wikipedia
Battle of Navarino — Infobox Military Conflict conflict=Battle of Navarino partof=the Greek War of Independence and the Russo Turkish War of 1828 1829 caption= The Naval Battle of Navarino (1827). Oil painting by Carneray. date=20 October 1827 place=Navarino, Greece… … Wikipedia
naval ship — Introduction the chief instrument by which a nation extends its military power onto the seas. Warships protect the movement over water of military forces to coastal areas where they may be landed and used against enemy forces; warships… … Universalium
Surface grinding — is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or non metallic substance from a workpiece, making a… … Wikipedia
Okemo Mountain — Okemo as seen fr … Wikipedia
Lake freighter — Lake freighters, or Lakers, are cargo vessels that ply the Great Lakes. The most well known is the SS Edmund Fitzgerald , the latest major vessel to be wrecked on the Lakes. These vessels are traditionally called boats, not ships. In the mid 20th … Wikipedia
Comparison of the AK-47 and M16 — M16 (top) and AK 47 (bottom) assault rifles Firearm AK 47 M16A1 Manufacturer Izhmash ArmaLite, Colt … Wikipedia