|
|
|
|
|
|
|
|
|
Bord-and-pillar
| Англо-русский словарь по геологии |
A method of extraction in which the coal or ore is removed by means of a set of mutually perpendicular roadways (‘bords’), leaving pillars of intact coal or ore to support the roof. synonyms: pillar- and-stall, room-and-pillar, stoop
|
Столбовой, русский
, остров в группе ляховских о-вов, в восточной части м. лаптевых, территория российской федерации. 170 км2. высота до 222 м.
|
Extraction, английский
- Extraction is the process of removing essential oils from plant material using solvents, which are then evaporated, leaving just the oil.
- 1. the removal of part of the body, especially a tooth 2. in obstetrics, delivery, usually a breech presentation, which needs medical assistance
- Извлечение
- Выделение (сигнала); извлечение; добывание; экстрагирование
- A process for obtaining natural oils by means of tanks and solvents and is used with certain flowers and plants where the heat of steam distillation might damage or destroy the odorous substances or in such cases where the yield of oils is rather small. in one process, the tank is stationary and the solvent flows over the flowers or other natural matter. the other involves the use of a revolving unit inside of which the flowers move through the solvent. after removal of the solvent, alcohol is agitated through the remaining mixture of waxes and oils and the former is removed by chilling and filtering. the alcohol and oil mixture is then brought to the boiling point, the alcohol filtered off, and the concentrate allowed to remain for recovery. the concrete, as previously defined, is the pure essence in solid form from which an absolute is derived.
- Removal of one substance from another, often accomplished by a solvent.
- Removal of one substance from another, often accomplished by means of a solvent.
- The process of taking out useable ore from waste materials
Perpendicular, английский
- Перпендикуляр; перпендикулярный
- A right line falling from or standing upon another vertically, and making the angle of 90° on both sides.
- Перпендикуляр
|
Columnarity, английский
Столбовая система выемки, русский
|
|
|
|
|
|
|
