The conditions and result of a commercial scale trial of gold extraction from stripped barren ore by heap leaching process are reported.
介绍了用堆浸法从剥离贫矿石中回收黄金的工业试验条件及结果。
Escondida means "hidden" in Spanish, and it refers to the fact that the copper ore body was buried beneath hundreds of meters of barren rock, and the surface geology gave no signs of its presence.
埃斯康迪达在西班牙语中有“隐藏”的意思，正暗示了铜矿的矿体埋藏在废石层下几百米深的地方，而从地表却一丝痕迹也看不出来。
On a recent rainy afternoon, Zeng Guohui, a 41-year-old laborer, walked to an abandoned mine where he used to shovel ore, and pointed out still-barren expanses of dirt and mud.
在一个即将下雨的下午，曾国辉，这个41岁的工人，来到了在他过去工作过的废弃矿井旁，这里仍然是一片泥泞的荒凉的地方。
Ore-bearing and barren rocks and soils were sampled in granite type uranium deposits, and their glowing curves and intensities were measured.
文中简单介绍了土壤天然热释光方法的测量原理，探讨了该方法在寻找隐伏花岗岩型铀矿床中应用的可行性。
Ore-bearing and barren rocks and soils were sampled in granite type uranium deposits, and their glowing curves and intensities were measured.
文中简单介绍了土壤天然热释光方法的测量原理，探讨了该方法在寻找隐伏花岗岩型铀矿床中应用的可行性。
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