hydraulic pressure drive
81tunnels 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 …
82M9 Armored Combat Earthmover — Infobox Weapon name=M9 ACE (Armored Combat Earthmover) caption=Two M9 ACEs staged ready to go out on a mission in Iraq. origin=USA type= is vehicle=yes crew=1 length= 6.2 m width= 3.2 m height= 3 m weight= 24.4 tonnes armour= mm primary armament …
83elevator — /el euh vay teuhr/, n. 1. a person or thing that elevates or raises. 2. a moving platform or cage for carrying passengers or freight from one level to another, as in a building. 3. any of various mechanical devices for raising objects or… …
84gasoline engine — Most widely used form of internal combustion engine, found in most automobiles and many other vehicles. Gasoline engines vary significantly in size, weight per unit of power generated, and arrangement of components. The principal type is the… …
85Hydropneumatic device — North American, European, and other languages refer to hydropneumatic devices such as a hydropneumatic accumulator or pulsation damper using very different words. In many cases this can cause a great deal of word usage confusion. This article… …
86List of Deadliest Catch episodes — This is a list of Deadliest Catch episodes with original airdate on Discovery Channel. Airdates on Discovery Channel Canada generally differ. Contents 1 Pilot 2 Season 1 3 Season 2 4 Season 3 …
87Aerial work platform — A tracked AWP at a building site. An aerial work platform, also known as an aerial device or elevating work platform, is a mechanical device used to provide temporary access for people or equipment to inaccessible areas, usually at height. There… …
88Hybrid vehicle drivetrain — Articleissues cleanup = January 2008 introrewrite = January 2008 Hybrid Vehicles make use of both an on board rechargeable energy storage system (RESS) and a fueled power source for vehicle propulsion. There are many ways to accomplish this.Types …
89technology, 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… …
90India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
