For reasons that lead concentrate contains many kinds of metal ores, it is difficult to evaluate its quality grade.
由于铅精矿中含有多种金属矿，给铅精矿质量等级的评价带来很大困难。
Processing tests on mixed copper and lead concentrate produced by a large copper mine in Yunnan Province were carried out aiming at the separation of copper and lead.
针对云南一大型矿山生产的铜铅混合精矿开展选矿试验，目的是实现铜铅分离。
The few lead content is beneficial in the precious metal cyaniding, but the high lead content in the gold concentrate roasting-cyaniding is harmful.
少量的铅含量在贵金属的氰化提金工艺中是有益的，但铅含量过高在金精矿的焙烧—氰化提金过程中是有害的。
The first to be a lead so that rivals will always be to concentrate on the second contention!
把第一定得遥遥领先，让对手们永远只能把精力集中在第二的争夺上！
The paper describes the features of bath smelting of lead sulfide concentrate and structural characteristics of the oxygen side-blown direct lead smelting furnace.
论述了硫化铅精矿熔池熔炼的特点以及氧气侧吹直接炼铅炉的结构特征。
Typically, a zinc concentrate contains about 55% of zinc with some copper, lead and iron.
一般而言，锌精矿含有大约55%锌和一些铜、铅和铁。
Plow, shoulder stand and seated or standing forward bends concentrate compression forces on the spine, which can lead to injury.
犁式，肩倒立和坐立或站立前屈集中脊柱的压缩，导致损伤。
Through finding out the state and peculiarity and disciplinarian of lead distributed in Jinduicheng molybdenum ores, the academic basis of low-lead molybdenum concentrate produced was put forward.
通过查明金堆城钼矿床中铅的赋存状态、嵌布特征及在矿床中的分布规律等，为生产低铅钼精矿提共理论依据。
A method is proposed to determine free native silver and free silver sulphide in lead-zinc concentrate.
拟定了分离测定铅锌精矿中游离硫化银和游离自然银的方法。
The pressure acid leaching process of bulk concentrate of zinc and lead is investigated.
研究锌铅混合精矿加压浸出过程。
Artificial heavy concentrate tests were conducted on chemical analysis spare sample from Relangze Lead-Silver Mine.
对热朗泽铅银矿矿石化学分析副样进行了人工重砂试验。
The copper recovered from jamesonite concentrate contains too much impurities like lead, sliver, antimony and bismuth, and can't be refined with normal electrolysis process.
从铅锑复合矿中综合回收产出的粗铜阳极含铜低，含铅银锑铋等杂质很高，无法采用常规电解方法电解。
The roasting dust which produced from zinc concentrate roasting process, main contains zinc oxide, zinc ferrite, zinc sulfide, cadmium sulfide, lead sulfate etc.
该种焙烧烟尘的二次焙烧处理工艺存在着环境污染等一系列无法彻底解决的问题。
I know people will concentrate on the controversies surrounding the referee's decisions, including the penalty that gave us a 2-1 lead, but please leave me out of this pointless argument.
我知道人们关注着围绕着裁判的决定而产生的争议，包括那个使我们2：1领先的点球的判罚，但是请让我远离这个毫无意义的争论。
The production cost of PbSO_4 with lead oxide is expensive. It is researched to obtaining directly PbSO_4 used as lead-acid batteries by processing the flotation-galena concentrate.
在本研究中，以经过浮选处理的方铅矿精矿为原料，采用湿法直接制备铅酸电池用材料硫酸铅。
The production cost of PbSO_4 with lead oxide is expensive. It is researched to obtaining directly PbSO_4 used as lead-acid batteries by processing the flotation-galena concentrate.
在本研究中，以经过浮选处理的方铅矿精矿为原料，采用湿法直接制备铅酸电池用材料硫酸铅。
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