查询词典 Zn

Efects of Cu and Zn supply on uptake and accumulation of Cu and Zn by Elsholtzia splendens and Elsholtzia argyi were examined in a solution culture experiment.

因此从本研究可以看出海州香薷和紫花香薷在Cu污染土壤植物修复中都具有良好的应用潜力。

The experimental results showed that elute ability were improving with the increa...

实验结果表明，随着柠檬酸、醋酸溶液浓度的增大，其对重金属的淋洗能力呈增强趋势；在同等浓度条件下，柠檬酸对Cu、Pb、Cd的淋洗效果比醋酸的好，而对Zn的淋洗，醋酸的淋洗效果比柠檬酸的好；对Cu、Zn、Pb、Cd的淋洗上，选择柠檬酸的最佳浓度分别为11mol/L、11mol/L、0.71mol/L、11mol/L，选择醋酸的最佳浓度均为11mol/L。

A series of hydrotalcites were synthesized using high saturated method and were characterized by XRD, IR and TG. The impact of hydrotalcite's chemical composition and crystal structure were studied by changing the molar ratio of Al to in the samples.

基于此，利用高过饱和沉淀法合成了一系列的Zn-Al-HTlc，并通过XRD， IR和TG进行了表征，研究了样品中的n/n，即x对Zn-Al-HTlc化学组成、晶体结构的影响。

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

Under torch brazing condition, using brazing filler metals of Cu-based and Ag-based, a series of tests are investigated to braze Ti based cermets and 45 steel, the micrographic structure of joints and shearing test results are analyzed, they show that Ti based cermets has good brazability.

通过观察和分析钎焊接头的结合情况及剪切试验，表明 Ti基金属陶瓷具有较好的钎焊性；火焰钎焊条件下，以 H 6 2为钎料的接头的平均剪切强度为37MPa，以 BAg10 Cu Zn为钎料的接头的剪切强度达 114 MPa，以 BCu Zn Mn为钎料的接头的平均剪切强度为 4 9MP

Nymphoides peltatum, a floating macrophyte was used as experimental materials, the contents of nutrient elements were obtained by inductively coupled plasma spectroscopy, the effects of exogenous PAs on Zn accumulation and other nutrient element absorption of plant leaves under Zn stress were observed.

方法］以浮水植物水荷花为试验材料，采用电感藕合等离子体发射光谱法测定各种元素含量，研究了外源多胺对锌胁迫下植物叶内锌富集及其他营养元素吸收的影响。

Effects on reproductive performance: The normal delivery of group B,C and D were 80%、93.33%、93.33%,respectively,were improved by a certain extent comparing with the control group; The mean birth weight of calves were not significantly different between the trial and control groups.But numerical datas shown that supplementing Zn-Met in dietary had the tendency to increase the birth weight of calves; Supplementing Zn-Met in dietary can make dairy cows express empathema earlier,and significantly(P.05).Among the trial groups,the advanced extent of the group C was comparatively large(5.8d);The oestrous cycles were all in normal range and not significantly different; The levels of serum PRL of group B,C and D were significantly(P.05) 1.46 ng/ml、3.08 ng/ml、3.45 ng/ml higher than the group A.

对繁殖性能的影响：添加蛋氨酸锌组的正常分娩率为80％、93.33％、93.33％，较对照组(73.33％)有一定程度的改善；试验组犊牛初生重与对照组犊牛初生重差异不显著(P＞0.05)，但数据结果显示，日粮添加蛋氨酸锌有使犊牛初生重增加的趋势；日粮添加蛋氨酸锌可使奶牛产后发情提前，且差异显著(P＜0.05)，其中，添加蛋氨酸锌240mg／kg组提前的幅度较大，提前了5.8d；试验组发情周期与对照组差异不显著(P＞0.05)，均在正常范围之内；B、C、D组血清促乳素含量均比对照组高，且差异显著(P＜0.05)，依次增加1.46ng／ml、3.08ng／ml、3.45ng／ml，试验组B与C、D两组间也达到显著差异(P＜0.05)。

The scintillant chamber is renovated and some new techniques are used to the ZnSscreen,which makes the instrument damp-proof and anti-erosion.

研制中对闪烁室进行了大胆的革新，对 Zn S屏采用了新工艺和高科技技术处理，彻底解决了 Zn S防潮难题，同时大大提高了抗腐蚀能力，大幅度延长了闪烁室的寿命，拓宽了应用环境。

The bonding form in extracted species can be represented by:〓 It was the direct bonding of donors that made the extraction of partially hydrolyzed iron much more effective, and the stereoselectivity of coordination that made the extraction of unhydrolyzed iron depressed, so that the extraction system became selective to the partially hydrolyzed iron .

研究中选择仲辛醇作为协萃剂对ZnSO〓溶液中的Fe-Zn分离进行了进一步的考查，无论对配制的溶液或是真实的ZnS高压浸取液，除铁及Fe-Zn分离的效果都非常好，而且反萃铁时的用酸量与传统的伯胺除铁过程相比降低了10倍以上，该体系是一个较为经济合理的具有一定发展潜力的萃取除铁体系。

Compare the lung injury extent and the important physiological parameters to determine the optimal condition for rabbit ventilator induced lung injury, Choosing another 24 new Zealand rabbit, randomly divided into 4 groups:(1)conventional ventilation+PEEP group;(2)ventilator induced lung injury group: employ the experimental condition determined by the first part experiment;(3)VILI+HO-1 inducer hemin group:pre-treated with HO-1 inducer, the ventilation method is the same with VILI group;(4)VILI+HO-1 inhibitor Zn-PP group(Zn-PP group):pre-treated with HO-1 inhibitor, the ventilation condition is the same with VILI group.

第二部分24只家兔随机分为4组：(1)常规潮气量+PEEP组；(2)呼吸机所致肺损伤组：使用实验第一部分确定的最适条件；(3)呼吸机所致肺损伤+HO-1诱导剂干预组：预先给予氯铁血红素，通气条件同VILI组；(4)呼吸机所致肺损伤+HO-1阻断剂干预组：预先给予锌原卟啉，通气条件同VILI组。

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。