三价

052 Describes and claims a body of polycrystalline dielectric ceramic material having a lead zirconate--lead titanate--lead stannate composition falling within the area A B C E F of the triaxial diagram 1d of the drawings accompanying this specification and containing at least one substitutional additive ingredient selected from the group consisting of elements having respective ionic radii sufficiently close to the ionic radius of one of the elements lead, tin, titanium, zirconium and oxygen to permit of substitution, and a valence state differing from that of said one element by less than three units, the aggregate quantity of additive ingredient amounting to from 0.1 to 5 percent of the replaced ion on an atom basis, each additive ingredient present in said material being in ionic form and substituting for a finite percentage of the ions of a particular one of the elements lead, tin, titanium, zirconium and oxygen with respect to which it conforms with regard to ionic radius and valence state, said additive ingredient replacing a quantity of said elements having in the aggregate an equal number of valence units.

参考译文：第 1012052 号专利说明书介绍一种含有锆酸铅，钛酸铅，锡酸铅的多晶陶瓷介质材料，其组成在说明书附图 ld 三元相图中处于 A B C E F 区域内，该组成至少还含有一种置换添加物，这种添加物从一组离子半径分别接近于铅，锡，钛，锆，氧的元素中选出，以利于互相置换，而与上述一种元素化合价之差应小于三价。该添加物的总量为被置换离子的 0.1%~5%克原子。上述材料中的每种添加物是以离子形式存在的，它以一定的百分数置换铅，锡，钛，锆，氧中的某一元素的离子。添加物在离子半径和价数上必须类似于上述任一元素，并且置换添加物的量与被置换的元素在总体上具有相等的化合价数。本句由两个简单句构成，一个主句，另一个是定语从句。

In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.

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。

Results: The linear ranges for inorganic arsenic, monomethylarsonic acid and dimethylarsonic acid were all from 5.0 to 100.0 μg/L The detection limits of As(superscript 3+), As(superscript 5+), monomethylarsonic acid and dimethylarsonic acid were 0.05 mg/kg. The recoveries of the method were 78%-110%(n=6), and the relative standard deviations were

结果：本方法的三价砷、五价砷、一甲基砷和二甲基砷在5.0~100.0 μg/L范围内有良好的线性，方法的测定低限均为0.05 mg/kg；实验表明方法对不同海产品的回收率在78%~110%之间，相对标准偏差在3.0%~12.2%之间。

But bivalent and trivalent metal salts of the phosphoric acid had little effect on properties of iPP.

而二价的钙盐、镁盐、锌盐和三价的铝盐的成核效果不明显。

A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。

Silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。

Iron in particles presents not only in trivalent compounds but also in bivalent ones, especially for samples collected in dust episode.

更重要的是，铁不仅以三价化合物存在，而且部分以二价化合物存在，特别是在沙尘暴期间。

A bivalent and trivalent metallic element of the rare earth group.

稀土属二价和三价金属元素。

Fe, Ni and Mn, in form of divalence, and Cr in form of trivalvence dissolve into solution.

蚀孔内发生金属的活性溶解腐蚀；Cr以三价离子，Fe，Ni和Mn以二价离子形式溶解；Fe，Cr的溶解量对孔蚀自催化效应有显著的影响。

In thisthesis our endeavor has been focused on the design of fluoresent sensors for sensinggroup 11 metal ions and phosphines －a very impotant type of organic molecule inthe industral and academic aspects.

三价磷的有机化合物由于其独特的配位能力已经吸引越来越多的人对它们进行深入研究，我们将三价磷受体单元同蒽荧光团有机地结合起来设计合成出下列新型含蒽荧光团双膦配体。

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。