vertical riser
51Shaft construction — concerns the building of vertical openings such as Raises and Shafts. Shafts are vertical openings used for supplying equipment, personnel, and support systems to the horizontal tunnel where the pipeline is installed. They can be temporary or… …
52Dragunov sniper rifle — SVD (Dragunov) Current production SVD with synthetic furniture. Type Sniper rifle, designated marksman rifle Place …
53Max Weinberg — Weinberg in 2008 during a Bruce Springsteen concert Background information Also known as Mighty Max Bo …
54Кабель категории 5 — (Cat 5)  тип кабеля для передачи сигналов, состоящий из 4 х витых пар. Этот тип используется в структурированных кабельных системах для компьютерных сетей, таких как Ethernet. Он также используется для телефонии и передачи видео сигналов.… …
55Centrifugal casting (industrial) — This article is about the large scale industrial process. For the silversmithing process, see Centrifugal casting (silversmithing). Centrifugal casting Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin… …
56Ocean thermal energy conversion — Temperature differences between the surface and 1000m depth in the oceans Ocean Thermal Energy Conversion (OTEC) uses the difference between cooler deep and warmer shallow or surface ocean waters to run a heat engine and produce useful work,… …
57Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
58Fire pump — A fire pump is a part of a fire sprinkler system s water supply. The pump intake is either connected to the public underground water supply piping, or a static water source (e.g., tank, reservoir, lake). The pump provides water flow at a higher… …
59Mesoamerican ballcourt — Ceramic sculpture from a Western Mexican tomb showing players engaged in the Mesoamerican ballgame. A Mesoamerican ballcourt is a large masonry structure of a type used in Mesoamerica for over 2,700 years to play the Mesoamerican ballgame,… …
60interior design — 1. the design and coordination of the decorative elements of the interior of a house, apartment, office, or other structural space, including color schemes, fittings, furnishings, and sometimes architectural features. 2. the art, business, or… …
