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Long-shank chopping bit
Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
A steel chisel-edged chopping bit having a longer and heavier than normal shank, designed to give added weight and directional stability when chopping an angle hole through overburden.
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Directional, английский
- Has no meaning but looks good when used by posers example this report is realistic, timely and directional in its approach.
- Направленный; курсовой; путевой
Overburden, английский
- Вскрышной слой (поверхностный слой грунта, удаляемый перед открытой добычей угля)
- Перегружать
- Clay, sand, boulder clay, and other un-consolidated materials overlying bedrock. also called burden, cover, drift, mantle, surface.
- The worthless material covering a body of useful mineral.
- Вскрышной слой грунта; вскрышная порода; перегрузка, чрезмерная нагрузка
- (a) the upper part of a sedimentary deposit, compressing and consolidating the materials below. (b) the loose soil or other unconsolidated material overlying bedrock, either transported or formed in place (synonym for regolith). gg
- Overlying rock, or soil.
- The soil and rock supported by the roof of a tunnel.
- Вскрыша
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Finger bit, английский
A steel rock-cutting bit having fingerlike, fixed, or replaceable, steel-cutting points affixed.
Potman, английский
A steam-boiler tender or fireman.
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