| 单词 | shaft |
| 释义 | shaft [shaft] GEOLOGY A passage in a cave that is vertical or nearly vertical. MECHANICAL ENGINEERING A cylindrical piece of metal used to carry rotating machine parts, such as pulleys and gears, to transmit power or motion. MINING ENGINEERING An excavation of limited area compared with its depth, made for finding or mining ore or coal, raising water, ore, rock, or coal, hoisting and lowering men and material, or ventilating underground workings; the term is often specifically applied to approximately vertical shafts as distinguished from an incline or an inclined shaft. SCIENCE AND TECHNOLOGY A long, slender, usually cylindrical part. |
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