查询词典 Zn

Growth and Metal Uptake Dynamics of Two Elsholtzia Plants on Cu,Pb and Zn Mixed-Contaminated Soils

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In this paper, the electroplating of bright Zn-Ni alloy process was studied, the effect of (1-hydroxy ethylidene diphosphonate acid coordinating agent, chloride content, [Zn2+]/[Ni2+] mole ratio, cathode current density, temperature, a class of aldehyde compound (abbreviated as ZNP additive agent) and supplementary coordinating agent on Ni content, and brightness of plating layer was discussed, the physical phase of alloy plating layer and stability of plating solution were determined.

研究了用有机多膦酸盐作络合剂，ZNP作添加剂电镀光亮锌镍合金，探讨了络合剂、氯化物含量、[Zn2+]/[Ni2+]比、阳极电流密度、温度、辅助络合剂对合金中镍含量的影响，测定了合金镀层中物相组成及镀液稳定性，通过筛选得出最佳最镀光亮锌镍合金的镀液组成及工艺条件，并讨论了锌镍合金的异常共沉积机理。

An experiment was conducted to evaluate excretive tendency of zinc in feces and urine with 8 goats groups fed with diet Ⅰ(basal diet+ 65 Zn Met) and diet Ⅱ(basal diet+ 65 ZnSO 4) respectively.

8只体重为9kg左右的健康浏阳黑公山羊，分成两组，单独关在代谢笼内，分别喂以含65Zn蛋氨酸（65ZnMet）和65Zn硫酸锌（65ZnSO4）的饲料，比较研究锌蛋氨酸螯合物的中锌在山羊粪、尿中的排泄动态。

As composting is a new alternative bioremediation technology for treatment of brganic pollutants and heavy metals, two experiments were conducted to evaluate the effect of using thermophilic composting to break down the content of tetracyclines and H2O extractible of heavy metals.

利用高温堆肥方法，比较不同堆肥处理对畜禽粪中四环素类抗生素TTC、OTC和CTC的降解特点以及对重金属Cu、Zn、Cr，As元素水溶态的影响。

The graphite and acetylene black are added to a anode material in making Zn-Mn battery, therefore the sample solution prepared appears as feculency and the titration end point of the solution is difficult to judge when active manganese in the battery is determined by iodimetry with starch as a indicator.

在测定锌锰干电池锰粉中活性二氧化锰含量时，由于制备电池时正极锰粉中添加了乙炔黑、石墨等导电材料，使制得的样品溶液显色且混浊，影响用淀粉作为指示剂进行碘量法滴定终点的判断。

The effect of Zn on tall fescue Festuca arundinacea Schreb.

以感染内生真菌和未感染内生真菌的高羊茅Festuca arundinacea Schreb。

The contents and distributions of heavy metals in muscle,fat,liver,pancreas,heart,lung,kidney,stomach and intestines of finless porpoise in the coast of Beibu Gulf were investigated.

应用原子吸收分光光度计对北部湾海域江豚的肌肉、脂肪、肝脏、胰脏、心脏、肺脏、肾脏、胃和肠管道等器官组织样品中的Cd、Cu、Zn、Pb、Cr、Ni、Fe、Mn、Hg和As的含量进行测定，并使用标准物作了对照分析。

There is a strongly positive linear correlation between the mole numbers of antimony and silver in freibergite.

在银黝铜矿中，Ag 的摩尔数与Sb、Zn的摩尔数呈明显正相关。

Compared with the control, pear with S2, S5 and PDR54 as inter rootstock bore fruits ahead of 2-3 years .Pear with PDR54 fruited even more early.

以PDR54为中间砧的嫁接树叶片当中，N、P、K、Ca、Mg、Fe、Zn等所测定的矿质元素的含量均有不同程度的下降，其中K和Ca的降低程度均超过了10%。

Furfurylidene acetone obtained from acetone and furfuratdehyde by condensationwas used as a brightener in an acid-sodium chloride type Zn electroplating bath.

由丙酮和呋喃甲醛经缩合反应所制得的呋喃叉丙酮，用作酸性氯化钠型镀锌的光亮剂。

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。