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1·Silver is enriched in lead concentrate.

银富集在铅精矿中。

2·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。

3·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。

4·Experimental results showed that applying selective flotation process and optimum reagent condition can efficiently separate the lead-zinc minerals and obtain lead concentrate of 63.

试验结果表明：采用铅优先浮选工艺和合理的药剂条件，可以有效地实现铅锌分离，获得铅精矿品位63。

5·Boiling can further concentrate lead, which can damage your brain and nervous system.

煮沸的水会进一步使铅聚集起来，对你的大脑和神经系统有害。

6·We are actively working on Grizzly 2.0 right now (with a new lead so I can concentrate on Atmosphere) and a lot of activities will also happens on that side.

我们现在正从事于Grizzly 2.0的开发(有新的领导，所以我能专注于atmosphere)并且很多活动也要在其上展开了。

7·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。

8·All this would naturally lead them to concentrate their pressure on us.

所有这些自然使得他们把压力集中到我们身上。

9·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！

10·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。