bed of ballast

  • 31Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …

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  • 32railroad — /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… …

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  • 33Reef aquarium — See also: Marine aquarium Reef aquarium in Monaco A reef aquarium or reef tank is an marine aquarium that prominently displays live corals and other marine invertebrates as well as fish that play a role in maintaining the coral reef environment.… …

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  • 34Rail tracks — are used on railways (or railroads), which, together with railroad switches (or points), guide trains without the need for steering. Tracks consist of two parallel steel rails, which are laid upon sleepers (or cross ties) that are embedded in… …

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  • 35Caribbean Sailing Yachts — Caribbean Sailing Yachts, also known as CSY, are heavy displacement recreational sailboats built during the 1970s and 1980s in Tampa, Florida. CSY went out of business in the early 1980s; however, the well founded boats have continued to sail the …

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  • 36Maritime history of California — History of California This article is part of a series Timeline …

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  • 37environment — 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… …

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  • 38Neath and Tennant Canal — The exit from Clun Isaf lock, restored in 2007 Original owner Neath Canal Nav Co, Port Tennant Nav Co Principal engineer …

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  • 39Karl Johanslussen — ( Lock of Charles John ) is a lock and a sluice, connecting and controlling the flood discharge between Riddarfjärden, the easternmost part of Lake Mälaren, and Saltsjön, the section of the Baltic Sea reaching into central Stockholm, Sweden. The… …

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  • 40Masthead Island — IUCN Category II (National Park) …

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