The Chinghai Province No. 15 Geological Prospecting Team surveying in rarefied air of the 6,000-meter-high Kunlun Mountains have discovered a number of important mineral deposits for socialist...
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The Chinghai Province No. 15 Geological Prospecting Team surveying in rarefied air of the 6,000-meter-high Kunlun Mountains have discovered a number of important mineral deposits for socialist...