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| 菱形掏槽对称角柱掏槽，掏槽孔呈菱形布置的掏槽方式; 锥形掏槽倾斜孔掏槽的一种形式，是V形掏槽的变种，适用于小断面巷道掘进。锥形掏槽因其掏槽孔底向一点集中，掏槽的形状似锥体而得名。有下述3种形式: 1. 三角锥掏槽。 2. 四角锥掏槽。 3. 多角锥掏槽 | |||
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| Refers to a piece of metal that has been cut with a tool affixed with a diamond. The hardness of the diamond cuts through the metal creating a criss-crossed pattern that creates a surface with more sparkle. | |||
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diamond cut : 8 phrases in 4 subjects |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 2 |
| Metallurgy | 2 |
| Technology | 2 |
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