The recovery mechanisms and parameters are introduced. Mass fraction of indium, copper and silver in obtained metals is over 99.99%.
介绍了铟、铜、银分别回收的原理及技术参数，所得金属中铟、铜、银质量分数均大于99.99%。
The pretreatment of silver concentrate with high arsenic, antimony and copper is followed by in-pulp electrolysis, the leaching rate of silver is over 95%.
富含砷、锑、铜的银精矿先经过预处理，再进行矿浆电解，银的浸出率达到95%以上。
The proved minerals are over 50 kinds like gold, silver, copper, iron, marble, granite, lime stone, and pyrite.
已探明的有金、银、铜、铁、大理石、花岗岩、石灰石、硫铁矿等50多种。
Metallurgy focused on copper, gold, and silver. archaic inscriptions on rocks and rock walls all over northern Mexico demonstrate an early propensity for counting in Mexico.
衍金主要是在铜、金、和石头与石墙的古老银刻文，显示墨西哥早期就有运算潜力。
Metallurgy focused on copper, gold, and silver. archaic inscriptions on rocks and rock walls all over northern Mexico demonstrate an early propensity for counting in Mexico.
衍金主要是在铜、金、和石头与石墙的古老银刻文，显示墨西哥早期就有运算潜力。
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