|
|
|
|
|
|
|
|
|
Blocky
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- Rock formations in which the core produced tends to break and block or jam inside the bit or core barrel.
- Rock that breaks away in thick blocks from the roof of a mine working.
- Shape term for a rock mass with three approximately orthogonal and
|
|
Approximately, английский
- Approx.
- Приблизительно
- Приблизительно, около
Orthogonal, английский
- Ортогональный
- Прямоугольный; ортогональный
- Объекты, касательные к которым в точке их пересечения перпендикулярны друг к другу.
Approximate, английский
- Приблизительный ар-ps ammonium perchlorate-poly- styrene (propellant) полистирол- перхлоратаммониевое ракетное топливо
- Приблизительный
- Приблизительно
|
Bock bit, английский
- Any one of many different types of roller bits used on rotary-type drills for drilling large-size holes in soft-to-medium-hard rocks; also sometimes applied to drag-type bits. see drag bit, roller bit.
- In mining, a detachable-type chisel or cruciform bit used on percussive drills to drill small-diameter holes in rock.
Block off, английский
- To fill and seal undesirable openings, fissures, or caving zones in a borehole by cementation or by lining the borehole with pipe or casing. also called blank oft, case off, seal off.
- Secure a mine opening against the flow or escape of gas, air, or liquid by erecting rock, concrete, steel, wood, or cloth barriers.
- Erect barriers to prevent men from entering unsafe areas in underground workings.
|
|
|
|
|
|
|
