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Mathematical Problems in Engineering
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2021
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Article
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Fig 2
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Research Article
Study on the Technology of Enhancing Permeability by Millisecond Blasting in Sanyuan Coal Mine
Figure 2
Damage distribution cloud map of different hole spacing. (a) 5.0 m, (b) 5.5 m, (c) 6.0 m, and (d) 6.5 m.
(a)
(b)
(c)
(d)