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Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。

Planet migration will probably increase the angular momentum of the star.

行星的移动很有可能增加恒星的角动量。

The animal was charcoal gray and probably quite young.

这个动物是深灰色的，或许还很幼小。

In a few years, I will probably have another way of animating, but this is my current approach to curves.

再过几年，也许我会有另一种新的方式去做动画，但是这是目前处理动画曲线的方式。

A passably large air-hole, probably the man-hole in the Rue d'Anjou, furnished a light that was almost vivid.

冉阿让用长兄对受伤弟弟那样轻柔的动作，把马吕斯放在阴沟里的长凳上。

Anhydrite, bassanite and ankerite founded in Bucha salt lake indicate that the source of salts is probably related to underground hydrothermal solution.

布查盐湖盐类沉积存在少量硬石青、半水石膏和铁白云石，表明布查盐湖的盐类物质来源很可能与地下热水作用有关。

That is probably the most annoying things that can happen to you.

这大概是最恼人的事情都发生在你。

In this case, two bits would probably be a better choice due to the anonymity restriction.

在这种情况下，二位，可能是更好的选择，因为它的匿名限制。

It is in the light of these venerable texts, which quite probably antedate the year 1000, that we must interpret the well-known reference of St. Bernard to the temporary disuse of confirmation in Ireland, c.

正是鉴於这些古老的文本，这很可能antedate 1000年，我们必须解释众所周知的参考圣伯纳德暂时不用的确认，爱尔兰，角 iv， in Acta SS。， Nov。， 1I， 145。

Today's translation of a lighthouse is probably the antennae of communication as that of Namsan Seoul Tower.

今天对灯塔的释义或许已经像首尔塔那样成为信息交流的天线了。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"