File:AmCyc Blasting - Stoping.jpg
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AmCyc_Blasting_-_Stoping.jpg (332 × 238 pixels, file size: 17 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:40, 19 March 2014 | 332 × 238 (17 KB) | Library Guy | {{Information |Description ={{en|1=Woodcut/drawing illustrating a method a forming steps in rock blasting called stoping. Several steps are shown schematically.}} |Source =''The American Cyclopædia'', v. 2, 1879, p. 700 (Fig. 4). |Author... |
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