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Jacking shield
| Глоссарий по проходческим щитам (тоннелингу) |
- A fabricated steel cylinder from within which the excavation is carried out either by hand or machine. an articulated steering section and steering jacks are incorporated into the shield to allow it to be adjusted to control line and grade. the term is associated with traditional tunneling.
- A fabricated steel cylinderat the front end of which excavation is carried out either by hand or by machine. incorporated with the shield are facilities to allow it to be adjusted to control line and grade.
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Jack, английский
- Vérin
- Device for suspending a loading-line lead block from a skyline.
- Силовой цилиндр
- 1. a sailor. also jack tar or just tar.
- A connecting device to which a wire or wires of a circuit may be attached and which is arranged for the insertion of a plug.
- In the british navy the jack is a small union flag, formed by the intersection of st. george`s and st. andrew`s crosses (which see), usually displayed from a staff erected on the outer end of a ship`s bowsprit. in merchant ships the union is bordered with white or red. (see union-jack.) also, a common term for the jack or cross-trees. also, a young male pike, esox lucius, under a foot in length. also, a drinking vessel of half-pint contents. (see black-jack.)—jack, or jack tar, a familiar term for a sailor. a fore-mast man and an able seaman. it was an early term for short coats, jackets, and a sort of coat-of-mail or defensive lorica, or upper garment.
- [1] a small national flag or ensign, worn forward by warships, such as the first navy jack or union jack. [2] a small house flag worn forward by merchantmen. [3] a crosstree at the head of a topgallant mast serving to spread the royal shrouds. [4] to turn a propeller shaft prevent it from bowing when engines are stopped. [5] formerly, a nickname for a seaman (cf. tar, jack tar). [6] to skin a seal. [7] a type of newfoundland fishing schooner.
- A mechanical device for the purpose of lifting a heavy load; it may be either a screw or hydraulic type. also called hydraulic jack, jackscrew, screw jack.
- A receptacle-type connector for audio signals into which a plug or other input is inserted. the plug is the `male` connector and the jack is the `female` connector.
- Маленький шар, служащий мишенью для игроков в шары
Jack, английский
Jack, английский
Jack - money, cash, example to buy that car would take some major jack.
Jack, английский
Интерфейс горизонтальных и магистральных кабелей, обеспечивающий электрическое соединение контактом проводников, механическое совмещение с помощью углубления для штыревого разъема и фиксацию защелкой.
Jack, английский
Jack -, английский
Двуногая стойка (крана-экскаватора, стрелового крана и т. п.)
Jack adams, английский
A stubborn fool.
Jack afloat, английский
A sailor. euripides used almost the same term in floater, for a seaman.
Jack and circle, английский
The apparatus consisting of a power¬ful jack and a steel-toothed circle on which the jack moves. the circle is attached to the drill floor, centered on the borehole collar, and used to tighten or loosen the joints in a string of drill tools.
Jack arch, английский
Jack beam, английский
A beam that supports another beam and eliminates the need for a supporting column. jackhammer 1. an airhammer. 2. a handoperated, pneumatic, rock drill.
Jack benny, английский
Jack board, английский
A brace used as a support for a pipe jack.
Jack boom, английский
A boom which supports sheaves that carry lines to a working boom.
Jack catch, английский
Jack de interconexión (de circuitos), испанский
Jack dusty, английский
A naval stores clerk.
Jack engine, английский
Jack field, английский
Коммутационное поле (в телефонии); панель коммутатора с гнездами; наборное поле
Jack handle, английский
Jack hole, английский
Fabricated, английский
U-bend, which expands or contracts to compensate for pipe contraction or expansion.
Excavation, английский
- An area where rock or alluvium has been removed.
- An area where rock has been removed
- The process of digging or the hole which results.
Articulated, английский
- With reference to a vehicle, hinged at the center for turning, as with a wheeled skidder (24).
- Шарнирный, шарнирно-со- членённый
Incorporated, английский
- Встроенный, вмонтированный
- Встроенный
Associated, английский
- Соответствующий; связанный; присоединенный
- Experiencing through your own senses (seeing through your own eyes, hearing with your own ears, feeling with your own feelings.)
Traditional, английский
A традиционный grammar
Facilities, английский
- Physical features of a hotel such as: accommodation, restaurants, bars, and meeting rooms.
- Производственные фонды; производственные здания, сооружения и оборудование, см. plants and equipment; средства (как правило, основные), см. capital goods; заводы; мощности, материальная база; оборудование; удобства; приспособления; устройства
- Помещение
- Something such as equipment, accommodation, treatment or help that is provided for people who need them the provision of aftercare facilities
- Мощности
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Trenchless technology, английский
- A family of construction techniques for installing or rehabilitating underground infrastructure with minimal disruption to surface traffic, businesses, and residents. also includes technologies for inspection, leak location, and leak detection with minimal disruption and minimal excavation from the ground surface.
- Underground construction methods of utility installation, rehabilitation, inspection, location and leak detection, with minimum excavation from the surface.
Intermediate jacking station (ijs), английский
A fabricated steel cylinder fitted with hydraulic jacks, which is incorporated into a pipeline between two specially fabricated pipe segments. its function is to provide additional thrust in order to overcome skin friction and distribute the jacking forces over the pipe string on long drives.
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