查询词典 Zn

By changing the ratio of ZnO and Ca2 and by different abstersion methods,three kinds of Ca[Zn-3]2·2 H2O powers with diffrent phase purities were prepared with chemo-synthesized method.

采用化学合成的方法，通过调整ZnO和Ca2的配比，以及用或不用KOH溶液洗涤产物，分别制备了相纯度不同的3种Ca[Zn3]2·2H2O粉体。

In the collembolan community, Sinella, Onychiurus, Isotomurus are the dominance species, the frequencies are 37.26%, 31.6%,and 21.23%, respectively.2.In the agricultural ecology of Fuyang, the dominant species are Collembola and Acari. Their frequencies are 66.37% and 16.72%, respectively. Liposcelididae, Ceratopogonidae, Chironomidae, Staphylinidae, Nematoda, Enchytraeidae are common species.

弹尾目昆虫对重金属污染的反应，不同的种之间有很大的差别，其中，裸长角属对Cu污染反应不灵敏，陷等属、棘属对Cu污染反应敏感，随着污染程度的加剧，它们的数量明显减少；小等属和长属对Cu、Zn、Cd、Pb等重金属元素的复合污染反应很敏感，而裔符属、球圆属、土属、圆属和鳞长属对重金属复合污染反应很迟钝，在这些重金属复合污染严重的农田中仍能很好地生存繁衍。

A novel phosphating processing that nickel salt, manganese salt, nitro acenaphthene and carboxyl group polymer were contained in self-made Zn system phosphating, was developed for electrophoretic coating.

在自制的低温锌系磷化液基础上，通过加入镍盐、锰盐和羧基聚合物，并以硝基苊为促进剂，研制出了一种适用于电泳涂装的低锌锰改性常温磷化工艺。

Nanometer compound oxides,eg. Li-Mn-O compound oxides for Li-ion battery,gas sensitive Zn-Fe-O compound oxides, Zn-Co-O compound oxides, etc.,are one of important functional materials.

中文摘要：纳米功能复合氧化物如锂离子电池正极材料锂锰氧复合氧化物、气敏锌铁氧、锌钴氧复合氧化物等是一类重要的功能材料。

The complexes 7 and 8 with mixed ligands 1, 2-bidentate thiolate and monodentateP〓 or PBu〓 ligands were synthesized from "building block"〓 L = P〓 or〓 through "trans-substitution" reaction of S and N atoms from mpt〓.

在14中，Zn为〓四配位的四面体构型，并通过分子内和分子间氢键形成〓维链。15中，Zn为〓五配位的四方锥构型，配位的〓来自2，2'-二硫水杨酸发生的脱硫反应。

Relationships between detoxification response to Cd and low molecular weight thiols in S.

Zn、Cd交互作用改变它们在枝根中分配，这种改变仍与它们在介质中浓度相关，Cd、Zn主要积累于根部。

Zn 〓 is a new product developed by Sinical Chemicals, which can be use as an cheap equivalent of Zn 〓 in the asymmetric alkynylation reaction.

对配体进行进一步改造后，反应的产率得到了很大的提高，ee值也有所提高，达到99%以上。

The volatilization rate of sulfur is exceed 80%. The technological process of suspension electrolysis of zinc sulphide concentrate is obtained in this paper.

电化学氧化过程中电子转移数为1，电化学机理为： ZnS=Zn~(2+)+S~-+e Zn~(2+)+2S~-=ZnS+S~0 氧化渣中的元素硫采用蒸馏法原理进行处理，元素硫的挥发率很高，超过80％。

The Zn-AI alloy coat steel wire has higher anti-corrosion properties than the Zn-coat steel wire.

锌铝合金镀层钢丝具有比纯锌镀层钢丝耐蚀能力高的优点。

objectiveto determine the content of five trace metal elements in black nightshade herb.methodsthe sample was digested with microwave digestion system,and rate determined by flame atomic absorption spectrometry;resultsthe method is simple,rapid and accurate.the recovery was 98.75%～102.50%, and rsd was 0.1297%～1.2177%.conclusionthe contents of ca, mn, fe in the black nightshade herb are abundant.

目的测定中草药龙葵中fe，cu，zn，mn，ca的含量。方法样品经微波消解，采用火焰原子吸收法测定fe，cu，zn，mn，ca的含量。结果该方法快速、简便、准确，5种金属的回收率为98.75%～102.50%，rsd为0.129 7%～1.217 7%。结论龙葵中ca，mn，fe元素含量较高。

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。