查询词典 anion

Some major results are listed as follows. In preparing gold catalysts supported on alumina or ceria and zirconia modified alumina by the direct anion exchange method, it shows considerable simplicity, flexibility and reproducibility. Tuning the gold loadings and washing procedures could control the sizes of gold nanoparticles below 6 nm.

得到以下主要结果：采用直接阴离子交换法制备氧化铝和铈、锆改性氧化铝负载的金催化剂，操作简便灵活，重复性好，通过调节金负载量和洗涤方法，金颗粒尺寸可以控制在6nm以下。

In this experiment 17β-estradiol, progesterone and testosterone at concentration of 2, 8 and 32 ppm in feed were investigated on the effects of variation of activities of glutamate oxidacetate transaminase, glutamate pyruvate transaminase, cholesterol concentration, Triglycerides concentration, phenoloxidase, superoxide dismutase and the concentrations of the superoxide anion in the haemocyte of white shrimp.

实验结果发现，在实验期间饲料中加添荷尔蒙的组别，白虾血淋巴中GOT酵素活性及GPT酵素活性在12小时就高於控制组，且一直延续到实验结束。

Applied with test of potted plant and measurement absorbency for study physiological response of activity of cell defense enzymes and lipid peroxidation of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of superoxide dismutase, catalase, antioxidant, malondialdehyde and the rate of superoxide anion(-O2) generating are mensurated under normal water condition while soil water content is 70% and light water stress while soil water content is 55% to 60% and medium water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of contents of SOD,CAT,AsA,MDA are mighty notable difference. The rate of -O2 generating is notable difference within families. The rate of -O2 generating is mighty notable difference within water grades.

为研究湿地松优良半同胞家系保护酶及脂质过氧化作用对水分逆境的生理响应，采用盆栽试验和吸光度测定结合的方法，以普通湿地松种子为对照，测定了七个湿地松半同胞家系在正常水分状态（土壤相对含水量为70%）、弱度水分胁迫（土壤相对含水量为55%~60%）、中度水分胁迫（土壤相对含水量为35%~40%）和强度水分胁迫（土壤相对含水量为20%~25%）条件下的SOD、CAT、AsA、MDA的含量和-O2产生速率，研究结果表明：无论是不同水分梯度还是不同家系水平，SOD、CAT、AsA活性和MDA含量的差异均达极显著水平，不同家系水平间-O2产生速率有显著差异，不同水分梯度间-O2产生速率差异达极显著水平。

Our independent research and development "far-infrared high-purity anion-additive" is used at home and abroad ,it is a high-grade functional stones ore, after artificial selection, crushing, magnetic separation, flotation, net Shui election process, such as multi-channel processing, scientific formula further purification Ultrafine processing.

我们自主研发的&高纯负离子远红外多功能添加剂&是选用国内外高品位功能性宝石级矿石，经过人工精选、破碎、磁选、浮选、水净选等多道工艺处理后，经科学配方再进行提纯超细加工。

Our independent research and development "far-infrared high-purity anion-additive" is used at home and abroad ,it is a high-grade functional stones ore, after artificial selection, crushing, magnetic separation, flotation, net shui election process, such as multi-channel processing, scientific formula further purification ultrafine processing.

我们自主研发的&高纯负离子远红外多功能添加剂&是选用中国外高品位功能性宝石级矿石，经过人工精选、破碎、磁选、浮选、水净选等多道工艺处理后，经科学配方再进行提纯超细加工。

Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~ series,have been wildly used due to their high proton conductivity and substantial durability.

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

There is a mounting hole on the bottom of the shell, Anion generating circuits packed together with carbon fiber bundle forms the anionic pulse generator which is inserted into the mounting hole and placed in the middle of the lamp shell.

负离子节能灯，包括灯头、灯壳、灯管、灯电路、负离子发生电路及碳纤维束，灯壳底座设有安装孔，负离自发生电路与碳纤维束封装于一体组成负离子发生器—整体插合于安装孔并置于灯壳外灯管中间。

As the distances between coordination sites of auxiliary ligands increasing, the distances between adjacent two-dimensional [Er(5-NO_2-bdc)_2]~- anion layers enlarged. As the bulks of auxiliary ligands largening, the coordination configuration of Er optimized and the dimensions of coordination polymers increased.

增大辅助配体的配位点之间的距离，增大了二维[Er(5-NO_2-bdc)_2]~-阴离子层之间的距离；增大辅助配体的空间位阻，优化了金属离子的配位几何构型，使配位聚合物的维度增大。

The mechanism of dioxygen oxidation of NTS to DNS in alkali solution under mild condition was inquired into. The result showed that the key step in the preparation of DNS from NTS was the formation of 4-nitro-2-sulfobenzyl anion as a result ionization of NTS in strong alkali and then oxidization to 4-nitro-2sulfobenzyl radical by activated dioxygen.

探讨了在温和条件下于碱的水溶液中氧气液相氧化4-硝基甲苯-2-磺酸制取4，4'-二硝基二苯乙烯-2，2'-二磺酸的反应机理，发现4-硝基甲苯-2-磺酸在碱作用下发生离子化生成4-硝基-2-磺酸基苄基阴离子，然后被活化的分子氧氧化成4-硝基-2-磺酸基苄基自由基是反应的关键步骤。

As shown in the experimental results: as the conductor of petroleum biological degradation, the quantity of microorganism is the important factor of petroleum degradation efficiency, the huge natural capacity of microorganism in soil is its foundation of bioremediation; petroleum density in certain scope do not affect for the degradation efficiency of petroleum, and in the density of 5%, its initial degradation efficiency is higher, however after training 40 days, this kind of advantage change weak gradually, the reason may be the petroleum of high density probably having certain poison role for microorganism; the best ecological condition of petroleum contaminated soil bioremediation is that nutrition material C: N = 60, electron receives body HiOi joining quantity amount to 12 mg/g, water content is 50%, surface activator is anion surface activator of 12 Wan base benzene sulphur sour sodium; the relation of primary and secondary of factor is water content, surface activator, nutrition material and electron receiver.

试验研究结果表明：作为石油生物降解的执行者，微生物的数量是影响石油降解效率的重要因素，土壤中微生物的巨大的自然容量是其生物修复的基础；石油浓度在一定范围内对石油的降解效率并没有影响，并且在5％浓度时，其起始降解效率较高，但是到了培养40天以后，这种优势渐渐变弱，可能还是高浓度的石油对微生物有一定的毒害作用；石油污染土壤生物修复的最佳生态条件为：营养物质C：N为60，电子受体H_2O_2的累计加入量为12mg/g，含水量为50％，表面活性剂为阴离子表面活性剂十二烷基苯磺酸钠；因素的主次关系为：含水量、表面活性剂、营养物质和电子受体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。