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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。

Giving gifts to one's broker might be justifiable from an etymological point of view because the word broker may be connected through its Anglo-Norman source brocour, abrocour, with Spanish alboroque, meaning "ceremony or ceremonial gift after the conclusion of a business deal."

从词源的角度来说，送礼物给经纪人是有一番道理的。因为broker 一词也许通过英国法语的词源 brocour，abrocour 与西班牙语 alboroque 形成亲属关系，而后者意为"一笔交易做成时作为礼节性的礼品"。

Questions on Anil's Ghost : this book might almost carry the same title as Card's science-fiction novel.

有关《菩萨凝视的岛屿》问题：这本书的书名就像卡德的科幻小说一般。

You might say, anime is just to give kids to read.

你也许会说，动漫仅仅只是给小孩子看的。

But if you put top notch music to mediocre anime that it might be better.

但如果你为平庸的动画配上一流的音乐，它会变得好些。

For a ghastly moment I thought he might be planning a soundtrack full of l960s pop hits — that black hole compounded of Cliff Richard, Paul Anka, Liberace, Lonnie Donegan — but Nick said no, he wanted to know what I and my schoolmates really listened to.

在一个极令人不快的时刻，我认为他正在计画一个全部是六十年代的流行音乐的电影配乐——由Cliff Richard、Paul Anka、Liberace和Lonnie Donegan的音乐混合而成的黑洞——但是Nick说不是的，他想要知道我和我的同学们实际上听什麽。

The results showed that the trace elements were not anomalously enriched. Zn and Cu existed in sphalerite. Cr, Pb and Cd were adsorbed by clay minerals. Ba might exist in ankerite and calcite. Ni, Mo, Co and As mainly existed in pyrite. Be and Se were combined with organics. Many trace elements were difficult to volatilize. Because of high content and volatility, Pb and Zn, are harmful to environments; Zn and Pb separately exist in sphalerite and clay minerals, so it is easy to reduce their environmental damage by washing and processing of coal.

结果表明：研究的元素没有异常富集；Zn和Cu赋存于闪锌矿中，Cr、Pb和Cd被粘土矿物吸附，Ba可能赋存于铁白云石和方解石中，Ni、Mo、Co和As主要赋存于黄铁矿中，Be和Se以有机结合态存在；研究的元素大多不易挥发，但Zn和Pb易挥发，且含量较高，环境危害较大，Zn和Pb分别赋存于闪锌矿和粘土矿物中，可通过洗选脱除减小其危害。

Any fears that Byron might make claims on the child he has had with Annabella dissipate quickly, and he signs the legal papers of separation with stunning swiftness — even though in "real life," as it's sometimes called, he wrote many letters begging Annabella not to pursue the separation.

拜伦可能对他与Annabella的女儿主张权利的任何担心，很快就消失了，因为拜伦以令人昏眩的速度在离婚文件上签了字。虽然现实生活中，有研究指出，拜伦给Annabella写了很多信求她不要离婚。

Moreover,I think in the course of polish there might be anneal.

而且觉得在磨的过程有退火的可能

A bristle or seta,especially of an annelid worm.…the young woman in whom Marcher's expert attention had recognised from the first a dependent with a pride that might ache though it didn't bristle.

马切尔训练有素的注意力一开始就认出这年轻女人是一位有自尊心的寄人篱下者，她的自尊心会使她痛苦，但是不会使她发怒。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。