马用
发表于 2025-3-21 16:45:22
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感情脆弱
发表于 2025-3-21 21:46:44
978-3-642-09268-8Springer-Verlag Berlin Heidelberg 2008
Prologue
发表于 2025-3-22 00:55:57
Introduction,metric. Any deposit evaluation should be based on solid historical research. Many deposits have a long exploration history. Meticulous investigation of older data often answers many questions and avoids mistakes.
THROB
发表于 2025-3-22 05:15:56
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突袭
发表于 2025-3-22 10:48:23
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确保
发表于 2025-3-22 15:19:09
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确保
发表于 2025-3-22 18:35:06
Comparison of Deposits,r in production or still in the preproduction stage. The best comparison is an economic one. This can be done via the payback period (Sect. 11.1.3), the earning power of a project expressed as the internal rate of return IRR (Sect. 11.2.4) or the standardized net present value NPV (Sect. 11.2.3.4).
繁殖
发表于 2025-3-22 22:57:43
Automat und Mensch im Weltraum,Generally speaking, multi-element deposits contain more than one metal as a significant source of revenue. This applies to most non-ferrous metal deposits. Complex volcanogenic sulphide deposits often contain five components: Cu, Pb, Zn, Ag, and Au. In this case, each individual component has to be weighted separately as shown in Sect.2.2.1.
Contracture
发表于 2025-3-23 02:22:18
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网络添麻烦
发表于 2025-3-23 08:16:41
One-Shot Neural Architecture Search,After having determined the capacity of the potential mine (Chap. 8), cost data will have to be calculated.