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Barefoot
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- Barefooted. =bare, q.v.
- Naked.
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Some drillers claim that such spiral ridges are formed whe, английский
Bit and drill stem chatter or vibrate or when the bit has been overfed. 2. one of a series of short, curved gouge marks on a glaciated rock surface. check. 1. to stop or slow down. 2. to inspect for structural or dimensional imperfec tions; to examine. 3. sometimes used as a synonym for check valve.
Bank pump, английский
Auxiliary pump placed on the bank of a stream or a lake and used to pump water to a distant drill. also called supply pump. bar. 1. a length of steel pipe equipped with a flat cap at one end and a jackscrew on the opposite end by means of which the pipe may be wedged securely in a vertical or horizontal position across an underground workplace to serve as a base on which a small diamond or rock drill may be mounted. also called drifter bar, drill bar, drill column. 9 2. a heavy steel rod with either pointed or flattened ends used as a pry or as a tool by miners to dislodge loose rock in roof or sidewalls of an underground workplace. 3. a bank of sand, gravel, or other material, espe cially at the mouth of a river or a bay.
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