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dense ballast concrete

См. также в других словарях:

  • Sailing ballast — Ballast is used in sailboats to provide moment to resist the lateral forces on the sail. Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Too much heel may result in the boat capsizing. When sailing vessels… …   Wikipedia

  • railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …   Universalium

  • environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

  • Bulk carrier — The Sabrina I is a modern Handymax bulk carrier. Class overview Name: Freighter Subclasses …   Wikipedia

  • Don Det — The Don Det – Don Khon (sometimes spelt Don Deth – Don Khone) railway was a seven kilometre (4.34 mile) long narrow gauge portage railway located on Don Det – Don Khon islands, part of the Siphandon (sometimes spelt Si Phan Don) or Four Thousand… …   Wikipedia

  • Construction of the Trans-Alaska Pipeline System — The construction of the Trans Alaska Pipeline System was a massive undertaking involving tens of thousands of people often in extreme temperatures and conditions. Specialized construction techniques were pioneered to build the pipeline, most of… …   Wikipedia

  • 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

  • technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

  • LGV Sud-Est — SNCF Name=PAGENAME ColourName=#dddddd The LGV Sud Est is a French high speed passenger rail line, which links Paris and Lyon. The inauguration of the first section between Saint Florentin (Yonne) and Sathonay (Rhône) on 22 September, 1981 marked… …   Wikipedia

  • lighthouse — /luyt hows /, n., pl. lighthouses / how ziz/. 1. a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. 2. either of two cylindrical metal… …   Universalium

  • MATIÈRE — Pour l’action comme pour la connaissance, la «matière» est toujours première. Première dans ses mixtes et ses confusions, lorsqu’elle résiste aux projets de façonnage; première dans sa présence originelle, dès qu’apparut le projet d’une… …   Encyclopédie Universelle

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