खोज परिणाम - "Phosphate mines and mining"
प्रस्तावित विषय : खोज निहित
प्रस्तावित विषय : खोज निहित
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Economic evaluation of borehole and conventional mining systems in phosphate deposits /
प्रकाशित 1983विषय: “…Phosphate mines and mining.…”
पुस्तक -
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Electrophoretic mobilities and cation exchange capacities of Florida phosphate slimes /
प्रकाशित 1975विषय:अज्ञात
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