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冲 击 强度指数
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Subject
Chinese
English
eng.geol.
冲击强度指数
impact strength index
expl.
冲击强度指数
impacts. strength index
expl.
普氏
冲击强度指数
Protodyakonov coefficient of rock strength
expl.
普氏
冲击强度指数
Protodyakonov impact strength index
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