- bottom surface of bolt
- нижняя поверхность затвора
English-Russian arms dictionary. 2013.
English-Russian arms dictionary. 2013.
Bolt manufacturing process — The bolt manufacturing process consists of three stages: * Heading * Thread rolling * Blackening Heading This initial process is a cold forging process (called heading ) used to produce a near net shape work billet. An important consideration in… … Wikipedia
extension bolt — noun : a bolt set flush and vertically (as at the top or bottom of a door) having a long extended rod by which it may be conveniently slid into place * * * a bolt fitted into a mortise in a door or the like, sliding into a socket in the head or… … Useful english dictionary
cremone bolt — n. a surface mounted, top and bottom locking, deadbolt mechanism operated by a central handle … Locksmith dictionary
M16 rifle — Rifle, 5.56 mm, M16 From top to bottom: M16A1, M16A2, M4A1, M16A4 Type Assault rifle Place … Wikipedia
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
Permanent way — The permanent way means the physical elements of the railway line itself: generally the pairs of rails typically laid on sleepers embedded in ballast, intended to carry the ordinary trains of a railway. This page describes British practice and… … Wikipedia
earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake … Universalium
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
Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold … Wikipedia
Landslide mitigation — Landslides can be triggered by many often concomitant causes. In addition to shallow erosion or reduction of shear strength caused by seasonal rainfall, causes triggered by anthropic activities such as adding excessive weight above the slope,… … Wikipedia
Door — For other uses, see Door (disambiguation). A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space. When open, they admit ventilation… … Wikipedia