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Perched water table
| Глоссарий по архитектуре и конструкциям |
A water table (usually of limited area) maintained above the normal free water elevation by the presence of an intervening relatively impervious confining strata.
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Perch, английский
- A unit of cubic measure used by stone masons; usually 161?2 ft by 11?2 ft by 1 ft (5.03 m by 0.46 m by 0.30 m).
- A pole stuck up on a shoal as a beacon; or a spar erected on or projected from a cliff whence to watch fish.
Percha de despliegue, испанский
Perchance, английский
Perchaps, английский
A variation of perhaps, a synonym for maybe. example perchaps tina will rule the world.
Perche, итальянский
Perched ground water, английский
Perched water, английский
An accumulation of groundwater that is above the regional groundwater table in an unsaturated zone.
Percher, английский
Птица, садящаяся на насест
Perching, английский
Inspection of cloth for defects while it is run over a roller.
Perchlorate based miqroknit explosive, английский
Микрогетерогенное взрывчатые вещества на основе перхлората
Perchloryl fluoride, английский
Фтористый перхлорил, фторид хлорноватой кислоты
Wat, нидерландский
Wat, английский
- Wave acquisition and tracking
- Weight-altitude-temperature
- Weighted-average toxicity
Wat-process, английский
Wat. vat abbr. for vinyl-asbestos tile. vault 1. a structure based on the principle of the arch, often constructed of masonry; typically consists of an arrangement of arches that cover the space below; also, английский
Wata, польский
Wata, английский
World association of travel agencies
Watch, английский
- A period of time during which a part of the crew is on duty. changes of watch are marked by strokes on the ship`s bell.
- The day at sea is divided into six four hour periods. three groups of watchstanders are on duty for four hours and then off for eight, then back to duty. seamen often work overtime during their off time.
- Вахта
- The division of the ship`s company into two parties, one called the starboard, and the other the larboard or port watch, alluding to the situation of their hammocks when hung up; these two watches are, however, separated into two others, a first and second part of each, making four in all. the crew can also be divided into three watches. the officers are divided into three watches, in order to lighten their duty; but it is to be borne in mind that the watch may sleep when their services are not demanded, whereas it is a crime, liable to death, for an officer to sleep on his watch. in a ship of war the watch is generally commanded by a lieutenant, and in merchant ships by one of the mates. the word is also applied to the time during which the watch remains on deck, usually four hours, with the exception of the dog-watches.—anchor-watch. a quarter watch kept on deck while the ship rides at single anchor, or remains temporarily in port.—dog-watches. the two reliefs which take place between 4 and 8 o`clock p.m., each of which continues only two hours, the intention being to change the turn of the night-watch every twenty-four hours.—first watch. from 8 p.m. till midnight.— middle-watch. from midnight till 4 a.m.—morning-watch. from 4 to 8 a.m.—watch is also a word used in throwing the deep-sea lead, when each man, on letting go the last turn of line in his hand, calls to the next abaft him, “watch, there, watch!” a buoy is said to watch when it floats on the surface of the water.
- [1] one of the divisions of the nautical day as outlined below. [2] the members of a ship’s company assigned to duty during such a division. [3] a spell of duty. it is inconceivable that an oceangoing ship could be operated around-the-clock without shift work and, from the earliest days of navigation there are records showing the division of crews into groups known as watches. nowadays, the merchantman’s nautical day is most usually divided into six 4-hour time periods, but sometime follow the warship routine of five 4-hour and two 2-hour watches. the shorter periods—called “dogwatches”—ensure that seamen are not always on duty at the same time, whether the crew is divided into the usual three watches, which gives them eight hours between spells of duty, or in two (watchand- watch) standing a grueling four hours on and four off. the term originated in the 17th century and is of uncertain origin, though some say it is a corruption of “dodge watch.” british and u.s. watch terminology are slightly different: in the usn, normal bell routine continues through the dogwatches, with 1, 2, 3, 4 bells being rung in the first and 5, 6, 7, 8 in the second. the rn also rings 1, 2, 3, 4 bells in the first dogwatch, but 1, 2, 3, 8 in the last. this originated on 13th may 1797, when officers learned that five bells instead of four in the last dogwatch was to be the signal for launching a mutiny. see also “five and dimes.” watch-and-watch: a watch bill based on only two duty sections, so that each has only four hours for eating, sleeping, and recreation before the next spell of duty. this arduous schedule has also been called fouron- four-off, heel-and-toe, turn-and-turn, and watchand- watch-about. the most usual naval terminology is port-and-starboard watches.
- A4 hour duty period while at sea.
Watch and watch, английский
The arrangement of the crew in two watches.
Watch below, английский
Refers to watchkeepers who are not on duty; therefore free to eat, sleep, or otherwise amuse themselves.
Relatively, английский
Impervious, английский
- In ceramics, that degree of vitrification evidenced visually by complete resistance to dye penetration; generally signifies zero absorption of water, except for floor and wall tile, which may absorb up to 0.5% water.
- Impassable. rock strata, such as tight clays, shales, etc., which cannot be penetrated by water, petroleum, or gas.
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Canting strip, английский
A water table, 1.
Automatic water supply, английский
A water supply system whose operation is not dependent on any manual setting of any items of equipment, such as operating valves, starting pumps, or connectors. automatic wet-pipe sprinkler system a sprinkler system in which all piping and sprinkler heads, at all times, are filled with water under pressure; the system discharges immediately when a sprinkler head operates, and the water continues to flow until the system is shut off. auto-suppression system a british term for a protection system that activates automatically when a fire is detected; an automatic sprinkler system.
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