查询词典 Zn

In this thesis , the effects of acid materials on calcareous soil were studied by using laboratory soil trial and pot experiments trail. The text studied effects of acid materials on pH value in calcareous soil ; studied effects of phosphoric acid (H2SO4 as control) on pH value and micronutrient availability ; studied relation between P and available Fe, Zn in plant; studied effects of acid material on growth of acidophilic plant.

本文采用室内模拟试验和盆栽试验相结合的方法，研究了不同酸性物质对石灰性土壤的酸化效果；磷酸和硫酸对石灰性土壤pH值及微量元素有效性的影响；植物体内磷、有效铁、锌的关系；不同酸性基质对嗜酸植物生长的影响。

It is attempted to analyse essential mineral elements like K, Mg, Cu, Zn, Ca and P in the cell wall of aerenchyma cells in petioles of S.

结果发现，在叶柄发育的早期，通气组织细胞壁的K和Cl含量很高，分别高达36％和4.3％细胞壁干重。

Electrochemical deposition of the Sn-Co-Zn ahoy was studied by cyclic voltammetry and chronoamperometry.

采用X射线衍射和扫描电子显微镜分析了该合金材料的相结构和表面形貌。

The analyses of phase and electron microprobe indicate Mn(superscript 2+) replaces Zn(superscript 2+) as allomerism in the crystal structure of the ore minerals in the deposit.

八家子铅锌矿床中矿石矿物的物相和电子探针分析表明，锰在闪锌矿中与锌呈类质同象状态。

The property of the coating is identical with electroplating Zn-Ni alloy coating in ammoniate.

其镀层性能和铵盐电镀锌－镍合金镀层相当。

Effect of acidity of aqueous phase and different ammoniation rates of extractant on the total mass transfer coefficients based on the water phase have been investigated The results showed that the mass transfer coefficients of Zn and Cd decreased but that of rare earth increased with the increasing of the ammoniated rate of extractant.

考察了料液酸度、萃取剂浓度以及萃取剂不同氨化度对锌、镉传质系数的影响。

The Concentrations of six trace metals and the three major elements in Japanese anchovy collected from Yellow Sea were measured.

测定了在黄海采集的各种体长的鳀鱼中6种痕量金属（Zn、Cu、Fe、Al、Mn和Sr）和3种主要元素的浓度。

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。

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。

These changes of acidic sites might be the reason of Zn-M/HZSM-5 catalyst showed higher aromatization activity.

热分析结果表明，催化剂的积碳是催化剂失活的原因之一。

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。