本剂抗酸抗碱抗二价离子，在任何水质中不沉淀。
The dose of anti-acid-alkali divalent ions in any water does not precipitate.
那么我们称它为第三电离能，或者负的束缚能，还是，2，s，轨道的，但现在我们是从正二价硼离子开始的。
So, what we call this is the third ionization energy, or the negative of the binding energy, again of the 2 s orbital, but now it's in boron plus 2 to we're starting with.
因为铝离子为正三价,氧为负二价。
Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.
然后我能在锂离子中，失去一个电子，锂离子失去一个电子，变为二价锂离子。
I can then subsequently lose an electron from the lithium ion. Lithium ion loses an electron to become lithium 2plus.
然后二价锂离子仍有一个电子。
负二价的硒离子将是等电子的，因为如果你给硒原子加上两个电子，你会得到,和氪原子相同的电子排布。
So, selenium 2 minus is what's going to be isoelectronic, because if you add two electrons to selenium, you'll get the same electron configuration that you have for krypton here.
阿玛托说，尽管诸如方铅矿一类的大部分含铅化合物都是不可容的，像羟氯铅矿这样的化合物还是“可以微溶于水，并产生Pb 2 +(二价铅离子)”。
Amatore says that although most lead compounds, like galena, are insoluble, compounds like laurionite 'can dissolve a little bit to produce Pb2 +.'
选择硫酸盐-柠檬酸盐体系锌锰合金镀液，研究了阳极、二价锰离子以及连续作用等因素对镀液稳定性的影响。
Herein, zinc-manganese alloy bath containing sulfate and citrate ions was selected, and the effect of anodes, manganous ions and continuous operation on bath stability was studied.
用离子交换方法制备了铜交换的分子筛，研究了将二价铜还原为一价铜的方法。
Cupric ion exchanged NaY zeolite was prepared. The method to reduce cupric into cuprous exchanged zeolite was studied.
并讨论了二价碘酸盐水化物的稳定性与阳离子电负性的关系。
The stability of hydrated divalent iodates is expected to be related to the electronegativity of the corresponding cations.
利用二价铁离子的联吡啶络合物，示差脉冲伏安法测定土壤中的二价铁离子。
This study attempted to determine ferrous ions through ferrous-bipyridyl chelate by differential pulse voltammetry.
通过实验利用二价铁离子对天然有色蛋白质纤维进行预处理，可以有效的降低损伤，提高白度。
The experiment makes crude protein fiber a pretreatment with ferrous ion. It can increase whiteness and reduce the damage effectively as well.
在酸碱性土壤中，磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。
In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.
对二价和高价离子具有高的选择性；(4)可取代传统处理过程中的多个步骤，因而比较经济。
Economic for it can replace many procedures in traditional process and separation technology, (4) Having high selectivity to different irons.
一种基与中心金属离子(如二价铁离子)结合，形成杂环。
The attachment of a group to a central metallic agent such as iron with two valences to form a heterocyclic ring.
目前，海藻酸钠与二价钙离子交联反应形成的海藻酸钙凝胶小球作为药物的载体日益受到广泛的应用。
Calcium alginate gel beads were widely used as drug carriers, which were obtained by the gelation of sodium alginate with divalent cation as Ca2 +.
在配合物1中，结构中存在一价铜，并且这个一价铜嵌在所有的二价铜之间，这就阻碍了顺磁离子之间的磁耦合，所以这个配合物呈现出非常弱的反铁磁耦合。
In the structure of 1, CuI ion site between the two CuII ions, which blocks the magnetic coupling of the spin center, so the compound show very weak antiferromagnetic behaviors.
结果显示配合物3有四边形孔穴的结构，荧光性能显示可以探测二价镁离子。
The results show: complex 3 have a square-like hole and may be employed in probing Mg~(2+) for use in fluoroimmunoassays.
实验表明，所制备的纳滤膜能有效截留二价和多价阳离子，对单价阳离子的截留率极低。
The result showed that bivalent and multivalent cations could be removed effectively, while the rejection of univalent cations was very low.
所述系统包括与锌或任何目的二价阳离子交联的果胶珠粒，所述珠粒然后用型聚合物包被。
The systems include pectin beads crosslinked with zinc or any divalent cation of interest, which beads are then coated with Eudragit TM -type polymers.
第一部分为二醋酸碘苯、二价铜离子及联咪唑促进下的1，3-二羰基化合物与亚砜的反应研究。
For the first part, we stressed reactions of sulphoxide with 1,3-dicarbonyl compounds promoted by Cu(OAc)2·H2O, 2,2′-biimidazole and iodobenzene diacetate.
本文研究了强碱性条件下，以乙二胺为络合剂，用水合肼把二价镍离子还原为单质镍的方法。
Under the condition that the strong basic is medium and ethylene diamine is complex reagent, the method that Ni2 + of wastewater is deoxidized by hydrazine hydrate is studied.
本文研究了强碱性条件下，以乙二胺为络合剂，用水合肼把二价镍离子还原为单质镍的方法。
Under the condition that the strong basic is medium and ethylene diamine is complex reagent, the method that Ni2 + of wastewater is deoxidized by hydrazine hydrate is studied.
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