锌

From the angle of the soil enzymes,lead to mild zinc and copper pollution improvement, and the copper pollution repair effect is not significant.

从土壤酶角度看，铅对轻度锌和铜污染有改良作用，而对铜污染修复效果不显著。

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。

In this sense, the zinc coating acts as what is called a sacrificial anode.

在这个意义上说，锌层充当什么是所谓的牺牲阳极。

Recent developments are extra-shiny and mirror effect pigments for printing inks and paints as well as anticorrosive zinc flakes.

在油墨和油漆领域中，近来发展了特亮的镜子效果颜料，和具防腐功效的片状锌颜料。

The research was to study the antidotal effect of Zn on pea seedling under Hg stress.

目的］研究锌对汞胁迫下豌豆幼苗的解毒效应。

In addition to higher levels of calcium and phosphorus, there is antidotal evidence that supplementing the gilt developer diet with higher levels of copper, zinc, iron, iodine and manganese will increase body reserves of these minerals and may enhance future reproductive performance.

磷之外如能再补充高水平的铜、锌、铁、碘、锰微量元素，这将有助于提高母猪体内对这些矿物质的储备从而能改善以后的繁殖表现。

There develops a typical epithermal mineral association in the deposit, which consists of zinckenite, diaphorite, antimonite, tennantite, native gold, pyrite, sphalerite, orpiment, realgar, and mercury oxide.

矿床中发育一套典型的低温热液矿物组合，包括辉锑铅矿、辉锑银铅矿、辉锑矿、砷黝铜矿、自然金、黄铁矿、闪锌矿、雌黄、雄黄、登红石等。

The factory is a professional production of fluorite powder, antimony, lead and zinc businesses.

本厂是一家专业生产萤石精粉、锑、铅、锌的企业。

The region is also rich in antimony, gold, zinc and tin.

除此之外，这个地区还盛产锑，金，锌和锡。

The active components in B.megaterium culture supernatant had molecular weight of 30～50 KDa and above 100 KDa,and the former was a kind of protein with an apparent molecular weight of about 35 KDa,which consisted of one sort of subunit and contained Fe and Zn elements.

其中30～50KDa范围的大菌胞外液中的活性组分为一种蛋白质，其表观分子量约为35KDa，由一种亚基构成，且该蛋白含金属铁和锌元素。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。