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本文介绍了美国契诺铜矿从铁路运输改为汽车运输的经过及利用汽车运输后的优越性。另外还概要地叙述了该矿排土、箕斗提升等的一些有关情况。
This article describes the advantages of the conversion of the Chino Copper Mine from rail transport to motor transport and the use of motor transport. In addition, a brief description of the mine dumping, skip some of the relevant circumstances.