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Longitudinal dune
| Глоссарий геологических терминов |
A long, narrow sand dune, usually symmetrical in cross profile, oriented parallel to the prevailing wind direction ; it is wider and steeper on the windward side but tapers to a point on the lee side. it commonly forms behind an obstacle in an area where sand is abundant and the wind is strong and constant. such dunes can be a few meters high and up to 100 km long. compare - seif dune, transverse dune. gg
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Dune, английский
Dune field, английский
An assemblage of moving and/or stabilized dunes, together with sand plains, interdune areas, and the ponds, lakes, or swamps produced by the blocking of waterways by migrating dunes. see dune lake. sw & sss
Dune lake, английский
(a) a lake occupying a deflation basin as in a blowout on a dune. (b) a lake occupying a basin formed by the blocking of a stream by sand dunes migrating along a shore (e.g. moses lake, wa). gg
Dune slack, английский
A damp depression or trough between dunes in a dune field or dune ridges on a shore, caused by intersecting the capillary fringe of the local water table; a moist type of interdune. compare - interdune, dune lake. sw & gg part 629 - glossary 629-27 (430-vi-nssh, 2008)
Dune terrace, английский
Dune tracking, английский
Наблюдения за перемещением дюн
Dunedin, английский
Г. данидин (адм. центр стат. р-на отаго, о. южный, новая зеландия)
Dunemobile, английский
Автомобиль для езды по песчаным дюнам
Dunes, английский
An anglo-saxon word still in use, signifying mounds or ridges of drifted sands. (see downs.)
Dunett, английский
Longitudinal, английский
- Generally parallel to the direction of the wood fibres.
- Продольный
- Generally, parallel to the direction of the wood fibers.
- Продольный, относящийся к долготе, стрингер
- [1] extending in the lengthwise direction, as distinguished from transverse. [2] said of any fore-and-aft structural member, such as a frame or bulkhead.
- Running lengthwise.
- Along the length of a structure.
- Direction parallel to the long axis of an object and perpendicular to its radius — for example, down the length of a cylinder. compare circumferential; radial; transverse. lot tolerance percent defective (ltpd): the poorest quality, in percent defective, individual lot that is acceptable in a sampling plan. ltpd is the percent defective that will be accepted by the sampling plan at most 10 percent of the time. with such a plan, the producer agrees to supply just enough nonconforming product such the consumer will accept the lot using the agreed to sampling plan and acceptable quality level. compare acceptable quality level. lumen (lm): si photometric unit of luminous flux, weighted according to the photopic vision response. one lumen equals the light emitted by one candela (cd) point source into one steradian (sr) solid angle (1 lm = 1 cd/sr).
Longitudinal (axial) modes, английский
Specific wavelengths in the laser output, determined by standing waves within the laser cavity. only longitudinal modes under the laser gain curve, above the laser threshold, are found in the laser output. individual longitudinal modes are produced by standing waves within a laser cavity.
Longitudinal (control), английский
Продольное управление
Longitudinal (position of) center of gravity, английский
Продольная центровка [положение центра тяжести]
Longitudinal (profile), английский
Longitudinal arch, английский
Same as plantar arch
Longitudinal axis, английский
- An axis along the lengthwise direction of the figure or body, usually passing through its center of gravity.
- Продольная ось
Longitudinal bar, английский
A steel reinforcing bar used in longitudinal reinforcement.
Longitudinal bond, английский
A masonry bond in which occasional courses are laid with all stretchers; sometimes used in thick walls.
Longitudinal brace, английский
Longitudinal bracing, английский
Bracing extending lengthwise of the structure, or parallel to its center line.
Symmetrical, английский
Симметричный
Prevailing, английский
Transverse, английский
- Across. a transverse section is a section across the length of a building or room.
- Поперечный
- Directions in wood at right angles to the wood fibers
- Perpendicular to the keel (athwartship).
- Across the vessel; athwartships. trim - fore and aft balance of a boat.
- Literally, “across,” usually signifying a direction or plane perpendicular to the direction of working.
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Longshore bar [relict], английский
A narrow, elongate, coarse-textured ridge that once rose near to, or barely above, a pluvial or glacial lake and extended generally parallel to the shore but was separated from it by an intervening trough or lagoon; both the bar and lagoon are now relict features. gg
Lodgment till], английский
A firm, dense, clay-rich till containing many abraded stones (coarse fragments) dragged along beneath a moving glacier and deposited upon bedrock or other glacial deposits. gg
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